Title:
Multiple-record-repeating phonograph
United States Patent 1342442
Inventors:
Heck, Charles M.
Publication Date:
06/08/1920
Export Citation:
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Assignee:
Heck, Charles M.
Primary Class:
369/86
Other Classes:
246/1C, 369/164, 369/222, 369/277
International Classes:
G11B3/08
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