{"e":{"id":285133,"source":"ia_catalogofcopyri331213libr","title":"ELECTROMAGNETIC WAVES","header":"ELECTROMAGNETIC WAVES. (Radio lectronics. Reel lesson 11) De Forest’s Training, Inc., 1948. 100 feet, b&w, 16mm. Summary: A detailed study of the radiation of radio energy from the transmitting antenna and its interception by the receiving antenna","year":1948,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":3938,"line_end":3956,"source_text":"ELECTROMAGNETIC WAVES. (Radio \n\n\nlectronics. Reel lesson 11) De Forest’s \n\n\nTraining, Inc., 1948. 100 feet, b&w, \n16mm. \n\n\nSummary: A detailed study of the radia- \ntion of radio energy from the transmitting \n\n\nantenna and its interception by the \nreceiving antenna. \n\n© De Forest’s Training, Inc.; \n10ct48; MP3904. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1949","url":"https://archive.org/details/catalogofcopyri331213libr","cite":"Internet Archive catalogofcopyri331213libr (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1949_catalogofcopyri331213libr_djvu.txt"},"ia_items":[],"ia_lookup":[]},"regs":[{"id":304040,"entry_id":285133,"reg_number":"MP3904","series":3,"see_also":[],"reg_class":"MP","published":true,"claimant":"De Forest’s Training, Inc","author":null,"deposit":null,"reg_date":"1948-10-01","part":null,"part_title":null,"source_line":3955,"raw":"lesson 11) De Forest’s Training, Inc., 1948. 100 feet, b&w, 16mm. Summary: A detailed study of the radiation of radio energy from the transmitting antenna and its interception by the receiving antenna © De Forest’s Training, Inc.; 10ct48; MP3904","flags":[],"status":"no-renewal-found","pd_date":"1977-01-01","reason":"no renewal entry found for 1975-1977 in the CCE motion-picture renewal sections","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1975,1976],"window_volumes":[{"year":1975,"ia_identifier":"catalogofcopyrig3291213libr"},{"year":1976,"ia_identifier":"1976motionpictur3301213libr"},{"year":1977,"ia_identifier":"1977motionpictur3311213libr"}]}]}