{"e":{"id":288598,"source":"ia_catalogofcopyri341213libr","title":"THE THERMOMETER","header":"lities of Key Productions, 1950. 11 min., sd., bkw, 16mm. (Experiences in Science Series) Summary: Explains by simple experiments the principle of expansion and contraction on which all thermometers work; shows how liquid and metal thermometers are constructed. For middle and upper elementary grades","year":1950,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":46912,"line_end":46923,"source_text":"duction facilities of Key Productions, \n1950. 11 min., sd., bkw, 16mm. (Exper- \niences in Science Series) \n\nSummary: Explains by simple experi- \nments the principle of expansion and con- \ntraction on which all thermometers work; \nshows how liquid and metal thermometers \nare constructed. For middle and upper \nelementary grades. \n\n© Key Productions, Inc.; 1Jun50; MP403. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1950","url":"https://archive.org/details/catalogofcopyri341213libr","cite":"Internet Archive catalogofcopyri341213libr (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1950_catalogofcopyri341213libr_djvu.txt"},"ia_items":[],"ia_lookup":[],"atlas":[]},"regs":[{"id":307505,"entry_id":288598,"reg_number":"MP403","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"Key Productions, Inc","author":null,"deposit":null,"reg_date":"1950-06-01","part":null,"part_title":null,"source_line":46923,"raw":"xplains by simple experiments the principle of expansion and contraction on which all thermometers work; shows how liquid and metal thermometers are constructed. For middle and upper elementary grades © Key Productions, Inc.; 1Jun50; MP403","flags":[],"status":"no-renewal-found","pd_date":"1979-01-01","reason":"no renewal entry found for 1977-1979 in the CCE motion-picture renewal sections or in the Copyright Office renewal records 1978-2025","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1977,1978],"window_volumes":[{"year":1977,"ia_identifier":"1977motionpictur3311213libr"},{"year":1978,"ia_identifier":""},{"year":1979,"ia_identifier":""}]}]}