{"e":{"id":286932,"source":"ia_catalogofcopyri341213libr","title":"COPPER—MINING AND SMELTING","header":"ates the main steps in extracting pure copper from ore. Depicts processes of blasting, loading and disposing of waste rock, loading ore in railroad cars, and crushing and washing, with emphasis on the work of the miners. For primary and middle grades. Credits: Educational collaborator, John R. Lewis","year":1950,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":3650,"line_end":3662,"source_text":"illustrates the main steps in extracting \npure copper from ore. Depicts processes \nof blasting, loading and disposing of waste \nrock, loading ore in railroad cars, and \ncrushing and washing, with emphasis on \nthe work of the miners. For primary and \nmiddle grades. \n\nCredits: Educational collaborator, John \nR. Lewis. \n\n© Viking Pictures Corp.; 6Feb50 (in \nnotice: 1949); MP14. ","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":305839,"entry_id":286932,"reg_number":"MP14","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"Viking Pictures Corp","author":null,"deposit":null,"reg_date":"1950-02-06","part":null,"part_title":null,"source_line":3661,"raw":"isposing of waste rock, loading ore in railroad cars, and crushing and washing, with emphasis on the work of the miners. For primary and middle grades. Credits: Educational collaborator, John R. Lewis © Viking Pictures Corp.; 6Feb50 (in notice: 1949); MP14","flags":["see_reference_in_head","title_from_index"],"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":""}]}]}