[Basic skills mathematics--fractions, cluster 6, adding and subtracting fractional numbers, pt. 1] part 2



[Basic skills mathematics--fractions, cluster 6, adding and subtracting fractional numbers, pt. 1]

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
PA0000155834 / 1982-09-24
Date of Publication:
July 9, 1979
Date of Creation:
1977
Date in Notice:
notice on tutorial and drill & practice: 1977; in notice on progress check: 1977, 1980
Title:
[Basic skills mathematics--fractions, cluster 6, adding and subtracting fractional numbers, pt. 1].
Copyright Note:
C.O. correspondence.
Imprint:
[Minneapolis] : Control Data Corp., c1980.
Description:
1 microcomputer program.
Variant title:
Basic skills mathematics--fractions, cluster 6
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Identifying material deposited in lieu of program.
Authorship on Application:
text & interactive graphics: Ralph Heimer.
Names:
Control Data Corporation (2034 documents)
example document: The Business systems analyst curriculum

Copyrights records by Control Data Corporation

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001117524 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : divis[i]on--division skills 4 drill and practice lesson]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : divis[i]on--division skills 4 drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Communication
Intercom, Inc.

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001117525 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : division--division skills 5 tutorial lesson]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : division--division skills 5 tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Introduction to programming in Basic
Intercom, Inc.

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001117526 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : division--division skills 5 drill and practice lesson]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : division--division skills 5 drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Every made-up story or novel has a plot
Intercom, Inc.

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126834 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--meaning of a fraction : tutorial lesson]
Basis of Claim:
New Matter: "revisions made to text of computer program (computer instructions) that generate lesson."
Previous Registration:
Version that generated drill & practice lesson prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--meaning of a fraction : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc. & Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Ratio, proportion and percent, geometry, and measurement
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126835 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication facts 1 : drill and practice lesson, no. 1003-94]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication facts 1 : drill and practice lesson, no. 1003-94
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Basic number ideas, addition, and subtraction
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126836 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication facts 2 : tutorial lesson, no. 1003-95]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication facts 2 : tutorial lesson, no. 1003-95
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Reading the newspaper
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126837 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication facts 2 : drill and practice lesson, no. 1003-96]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication facts 2 : drill and practice lesson, no. 1003-96
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: The Balance sheet and profit and loss statement
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126838 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication 1 : properties drill and practice lesson, no. 1003-98]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication 1 : properties drill and practice lesson, no. 1003-98
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Instructional strategies; a course in the Create curriculum. By Control Data Corporation. 3d ed
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126839 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication 1 : properties tutorial lesson, no. 1003-97]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication 1 : properties tutorial lesson, no. 1003-97
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: The Interview
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126840 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication 2 : properties tutorial lesson, no. 1003-99]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication 2 : properties tutorial lesson, no. 1003-99
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Improving structure in paragraphs
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126841 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 5 : tutorial lesson, no. 1003-109]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 5 : tutorial lesson, no. 1003-109
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Administrator's guide for the Building your own business course
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126842 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 4 : drill and practice lesson, no. 1003-108]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 4 : drill and practice lesson, no. 1003-108
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Women in the work environment; administration guide
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126843 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 4 : tutorial lesson, no. 1003-107]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 4 : tutorial lesson, no. 1003-107
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: General educational development
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126844 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 3 : drill and practice lesson, no. 1003-106]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 3 : drill and practice lesson, no. 1003-106
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Introduction to data processing for managers
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126845 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 3 : tutorial lesson, no. 1003-105]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 3 : tutorial lesson, no. 1003-105
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Whole numbers, practice
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126846 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 2 : tutorial lesson, no. 1003-103]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 2 : tutorial lesson, no. 1003-103
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: [General educational development reading
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126847 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 2 : drill and practice lesson, no. 1003-104]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 2 : drill and practice lesson, no. 1003-104
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Multiplication and division
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126848 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : multiplication, multiplication skills 1 : tutorial lesson, no. 1003-101]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : multiplication, multiplication skills 1 : tutorial lesson, no. 1003-101
Copyright Claimant:
Control Data Corporation
Notes:
Title from appl.
Authorship on Application:
co-authors of derivative text of computer program that generates lesson: InterCom, Inc., and Control Data Corporation, employers for hire.
Names:
Control Data Corporation (2034 documents)
example document: Expanding your managerial perspective
InterCom, Inc. (90 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126860 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--adding/subtracting fractions 2 : drill and practice lesson : no. 1003-19]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--adding/subtracting fractions 2 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc. (14 documents)
example document: SVE AutoGraph
Control Data Corporation (2034 documents)
example document: [High school skills reading

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126861 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--adding/subtracting fractions 2 : tutorial lesson : no. 1003-20]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--adding/subtracting fractions 2 : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: [High school skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126862 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--adding/subtracting fractions 1 : drill and practice lesson : no. 1003-21]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--adding/subtracting fractions 1 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: Introduction to sets

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126863 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--multiplication and division of mixed numbers 2 : drill and practice lesson : no. 1003-3]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--multiplication and division of mixed numbers 2 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: Selling

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126864 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--multiplication and division of mixed numbers 2 : tutorial lesson : no. 1003-4]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--multiplication and division of mixed numbers 2 : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: Using communication skills as a manager

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126865 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--multiplication and division of mixed numbers 1 : drill and practice lesson : no. 1003-5]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--multiplication and division of mixed numbers 1 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: Multiplication and division

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126866 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--multiplication and division of mixed numbers 1 : tutorial lesson : no. 1003-6]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--multiplication and division of mixed numbers 1 : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc. (14 documents)
example document: SVE AutoGraph
Control Data Corporation (2034 documents)
example document: Improving structure in paragraphs

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126867 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--dividing fractions 2 : drill and practice lesson : no. 1003-7]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--dividing fractions 2 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: [Basic skills mathematics

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126868 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--dividing fractions 2 : tutorial lesson : no. 1003-8]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--dividing fractions 2 : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc. (14 documents)
example document: SVE AutoGraph
Control Data Corporation (2034 documents)
example document: Multiplication and division

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126869 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--dividing fractions 1 : drill and practice lesson : no. 1003-9]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--dividing fractions 1 : drill and practice lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: Preventive maintenance

[Basic skills mathematics

Type of Work:
Machine-readable work or computer program
Registration Number / Date:
TX0001126870 / 1983-04-13
Date of Publication:
September 1, 1981
Date of Creation:
1981
Title:
[Basic skills mathematics : fractions--dividing fractions 1 : tutorial lesson : no. 1003-10]
Basis of Claim:
New Matter: revisions.
Previous Registration:
Prev. reg. 1982, TX 1-046-615.
Description:
Printout.
Variant title:
Basic skills mathematics : fractions--dividing fractions 1 : tutorial lesson
Copyright Claimant:
Control Data Corporation
Notes:
Title from copyright appl.
Authorship on Application:
co-author of text: Intercom, Inc. & Control Data Corporation, employers for hire.
Names:
Intercom, Inc.
Control Data Corporation (2034 documents)
example document: [High school skills mathematics
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