INTRO- THE COMPUTER IN THE CLASSROOM

ral Motors Corp.; 30Jan61; JU10018. COMPLEX NUMBERS AND ROOTS OF EQUATION. SEE ADVANCED ALGEBRA. THE COMPOSITION OF AIRe SEE UNDER= STANDING THE ATMOSPHERE. THE COMPOSITION OF ATOMS, DUCTION TO CHEMISTRY. SEE INTRO- THE COMPUTER IN THE CLASSROOM. Rand Corp. 13 min., sd., b&w, 16 mm. By James A. Cook

Registration MP11493 No renewal found

Term began: 1960-10-05
Claimant: Rand Corp
Class: MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
Finding: no renewal entry found for 1987-1989 or in the Copyright Office renewal records 1978-2025
In the public domain since: 1 January 1989 (end of the 28th year, no renewal)

A renewal would have appeared in the Copyright Office's renewal registrations 27 to 29 years after the term began. Those volumes are loaded and no matching renewal was found. A work published 1931–1963 that was not renewed entered the public domain at the end of its 28th year.

A renewal had to be filed in the 28th year and would be listed in the 1987 or 1988 volume; volumes searched: 1987, 1988, 1989.

The renewal sections are OCR text of printed volumes; a damaged record can hide a renewal. Before relying on this, search the linked volumes yourself for the title and for number MP11493.

Catalog entry

Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1961, Internet Archive catalogofcopyr3151213libr (OCR text), lines 4710–4732.

Division, General Motors Corp.; 
30Jan61; JU10018. 


COMPLEX NUMBERS AND ROOTS OF EQUATION. 
SEE ADVANCED ALGEBRA. 


THE COMPOSITION OF AIRe SEE UNDER= 
STANDING THE ATMOSPHERE. 


THE COMPOSITION OF ATOMS, 
DUCTION TO CHEMISTRY. 


SEE INTRO- 


THE COMPUTER IN THE CLASSROOM. Rand 
Corp. 13 min., sd., b&w, 16 mm. 
By James A. Cook. © Rand Corp.; 
50ct60; MP11493.

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