{"e":{"id":295250,"source":"ia_catalogofcopyrig381213lib","title":"ARCHIMEDES! PRINCIPLE","header":"ARCHIMEDES! PRINCIPLE. Encyclopaedia Britannica Films. 6 min., sd., b&w, 16mm, With film guide","year":1953,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":1396,"line_end":1401,"source_text":"ARCHIMEDES! PRINCIPLE. Encyclopaedia \nBritannica Films. 6 min., sd., b&w, 16mm, \nWith film guide. \n\n© Encyclopaedia Britannica Films, inc.; \n10Sep53; MP4204. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1954","url":"https://archive.org/details/catalogofcopyrig381213lib","cite":"Internet Archive catalogofcopyrig381213lib (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1954_catalogofcopyrig381213lib_djvu.txt"},"ia_items":[],"ia_lookup":[]},"regs":[{"id":314157,"entry_id":295250,"reg_number":"MP4204","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"Encyclopaedia Britannica Films, inc","author":null,"deposit":null,"reg_date":"1953-09-10","part":null,"part_title":null,"source_line":1400,"raw":"ARCHIMEDES! PRINCIPLE. Encyclopaedia Britannica Films. 6 min., sd., b&w, 16mm, With film guide © Encyclopaedia Britannica Films, inc.; 10Sep53; MP4204","flags":[],"status":"no-renewal-found","pd_date":"1982-01-01","reason":"no renewal entry found for 1980-1982 or in the Copyright Office renewal records 1978-2025","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1980,1981],"window_volumes":[{"year":1980,"ia_identifier":""},{"year":1981,"ia_identifier":""},{"year":1982,"ia_identifier":""}]}]}