FRENCH VERSION SEE PRINCIPES FONDAMENTAUX DE L’ACCOUSTIQUE
w, 16mm, French version of “‘Fundamentals of Accoustics’’, Summary: By means of animated diagrams, the range and physiology of hearing, and the principles of velocity and refraction of sound are explained. Engineering problems, such as the elimination of high and low frequencies, are also considered
Registration MP3599 No renewal found
- Term began
- 1948-11-15
- Claimant
- Encyclopaedia Britannica Films, Inc
- Class
- MP — published motion picture other than a photoplay (numbering series begun 1946)
- Finding
- no renewal entry found for 1975-1977 in the CCE motion-picture renewal sections
- In the public domain since
- 1 January 1977 (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 1975 or 1976 volume; volumes searched: 1975, 1976, 1977.
Catalog entry
Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1948, Internet Archive catalogofcopyrig321213lib (OCR text), lines 27724–27736.
Inc., 1948. 1 reel, sd., b&w, 16mm, French version of “‘Fundamentals of Accoustics’’, Summary: By means of animated dia- grams, the range and physiology of hearing, and the principles of velocity and refraction of sound are explained. Engineering problems, such as the elimination of high and low frequencies, are also considered. © Encyclopaedia Britannica Films, Inc.; 15Nov48; MP3599.
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