{"e":{"id":82793,"source":"ia_catalogofcopyrig161libr","title":"PROBLEMS OF FLIGHT","header":"Problems of flight.","year":1941,"reels":null,"feet":null,"sound":false,"credits":null,"notes":["Principles of radio - pt. 1. See Sending radio messages.","New York"],"line_start":31791,"line_end":31796,"source_text":"Principles of radio - pt. 1. See Sending radio \nmessages. \n\n\nProblems of flight. © June 12, 1941; M 14211; \nErpi classroom films, inc., New York. 5476 ","source_meta":{"name":"Catalog of Copyright Entries, New Series, Part 1 Group 3: Dramatic Compositions, Motion Pictures, 1943","url":"https://archive.org/details/catalogofcopyrig161libr","cite":"Internet Archive catalogofcopyrig161libr (OCR text)","file":"/root/projects/publicreel/data/raw/cce_new_series/1943_catalogofcopyrig161libr_djvu.txt"},"ia_items":[],"ia_lookup":[]},"regs":[{"id":100991,"entry_id":82793,"reg_number":"MP14211","series":2,"see_also":[],"reg_class":"MP","published":true,"claimant":"Erpi classroom films, inc.","author":null,"deposit":null,"reg_date":"1941-06-12","part":null,"part_title":null,"source_line":31791,"raw":"Principles of radio - pt. 1. See Sending radio messages. Problems of flight. © June 12, 1941; M 14211; Erpi classroom films, inc., New York","flags":[],"status":"uncertain","pd_date":null,"reason":"registration number MP14211 does not fit the numbering of 1941; the catalog date or number is likely misprinted","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1968,1969],"window_volumes":[{"year":1968,"ia_identifier":"catalogofc19683221213libr"},{"year":1969,"ia_identifier":"catalogofc19693231213libr"},{"year":1970,"ia_identifier":"catalogofc19703241213libr"}]}]}