{"canonical_url":"https://publicreel.org/film/291065","film_page_url":null,"answer":"The US record is unclear: no registration date parsed from the catalog entry.","revision_url":"https://publicreel.org/film/291065/evidence/589c34d0","jurisdiction":"US","finding":"uncertain","finding_label":"Uncertain","finding_reason":"no registration date parsed from the catalog entry","public_domain_from":null,"finding_revision":"589c34d0","finding_recorded":"2026-09-05 20:21:43.699877+00:00","review_status":"automated","title":"ELECTROMAGNETS","title_display":"Electromagnets","registration_year":null,"release_year":null,"sources":[{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1952","citation":"Internet Archive catalogofcopyrig361213lib (OCR text)","url":"https://archive.org/details/catalogofcopyrig361213lib","lines":[4706,4721]}],"limitations":["The catalog entry has a problem (missing date, or a number that does not fit its year), so the renewal check cannot be relied on.","The finding is about the US copyright record only; it is not legal advice and says nothing about other countries, underlying works, music, or a particular copy."],"entry":{"id":291065,"source":"ia_catalogofcopyrig361213lib","title":"ELECTROMAGNETS","header":"ELECTROMAGNETS (Filmstrip) Young America Films, 1952. 44 fr., color, 35mm. (Elementary Science Series. Set no. 2) Summary: Reviews the properties of the magnet. Explains how a magnetic field is produced around a wire, how the power of the magnetic force can be varied, and how electromagnets are used","year":null,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":4706,"line_end":4721,"source_text":"ELECTROMAGNETS (Filmstrip) Young \nAmerica Films, 1952. 44 fr., color, 35mm. \n(Elementary Science Series. Set no. 2) \n\nSummary: Reviews the properties of the \nmagnet. Explains how a magnetic field is \nproduced around a wire, how the power of \nthe magnetic force can be varied, and how \nelectromagnets are used. \n\n© Young America Films, Inc.; 25Feb52; \nJP1174. \n\n\nTHE ELIXIR OF MARTHY. SEE American \nWit and Humor, no. 1. LP1604. ","ia_items":[],"ia_lookup":[],"atlas":[],"picture":null},"registrations":[{"id":309972,"entry_id":291065,"reg_number":"LP1604","series":4,"see_also":[],"reg_class":"LP","published":true,"claimant":"Young America Films, Inc","author":null,"deposit":null,"reg_date":null,"part":null,"part_title":null,"source_line":4716,"raw":"s. Set no. 2) Summary: Reviews the properties of the magnet. Explains how a magnetic field is produced around a wire, how the power of the magnetic force can be varied, and how electromagnets are used © Young America Films, Inc.; 25Feb52; JP1174. THE ELIXIR OF MARTHY. SEE American Wit and Humor, no. 1. LP1604","flags":["date_unreadable"],"status":"uncertain","pd_date":null,"reason":"no registration date parsed from the catalog entry","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":null,"window_volumes":[]}]}