TACHISTOFILM A-A-100
TACHISTOFILM A-A-100. Edwin P. Heinrich, 1953. 1 reel, si., bew, 8mm. Summary: One hundred arithmetic problems composed of one-digit numbers placed one under the other. For use as a diagnostic and therapeutic tool for the basic facts in addition and multiplication
Registration MP3210 No renewal found
- Term began
- 1953-01-28
- Claimant
- Edwin P. Heinrich
- Class
- MP — published motion picture other than a photoplay (numbering series begun Jan. 1950)
- Finding
- no renewal entry found for 1980-1982 or in the Copyright Office renewal records 1978-2025
- In the public domain since
- 1 January 1982 (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 1980 or 1981 volume; volumes searched: 1980, 1981, 1982.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1953, Internet Archive catalogofcopyrig371213lib (OCR text), lines 20374–20383.
TACHISTOFILM A-A-100. Edwin P. Heinrich, 1953. 1 reel, si., bew, 8mm. Summary: One hundred arithmetic prob- lems composed of one-digit numbers placed one under the other. For use as a diagnostic and therapeutic tool for the basic facts in addition and multiplication. © Edwin P. Heinrich; 28Jan53; MP3210.
Copies on the Internet Archive
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