{"e":{"id":287623,"source":"ia_catalogofcopyri341213libr","title":"28, VACUUM TUBE RECEIVERS","header":" VACATION AT DEL MAR, MP4997,. SEE Screen Snapshots. Series 28, VACUUM TUBE RECEIVERS. (Radio Electronics. Reel lesson 13) DeForest's Training, Inc., 1949, 100 ft., b&w, 16mm. Summary: Illustrates various types of radio receivers, including the Super heterodyne and the Tune Radio Frequency receivers","year":1949,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":19634,"line_end":19649,"source_text":"VACATION AT DEL MAR, MP4997,. SEE \nScreen Snapshots. Series 28, \n\n\nVACUUM TUBE RECEIVERS. (Radio \nElectronics. Reel lesson 13) DeForest's \nTraining, Inc., 1949, 100 ft., b&w, \n16mm. \n\nSummary: Illustrates various types \nof radio receivers, including the Super \nheterodyne and the Tune Radio Frequency \nreceivers, \n\n© DeForest's Training, Inc.; 15Jun49 \n(in notice; 1948); MP203. ","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":[]},"regs":[{"id":306530,"entry_id":287623,"reg_number":"MP203","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"DeForest's Training, Inc","author":null,"deposit":null,"reg_date":"1949-06-15","part":null,"part_title":null,"source_line":19648,"raw":"onics. Reel lesson 13) DeForest's Training, Inc., 1949, 100 ft., b&w, 16mm. Summary: Illustrates various types of radio receivers, including the Super heterodyne and the Tune Radio Frequency receivers © DeForest's Training, Inc.; 15Jun49 (in notice; 1948); MP203","flags":["see_reference_in_head"],"status":"no-renewal-found","pd_date":"1978-01-01","reason":"no renewal entry found for 1976-1978 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":[1976,1977],"window_volumes":[{"year":1976,"ia_identifier":"1976motionpictur3301213libr"},{"year":1977,"ia_identifier":"1977motionpictur3311213libr"},{"year":1978,"ia_identifier":""}]}]}