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Record cutting device
United States Patent 2241622
Inventors:
George, Silber
Victor, Silber
Publication Date:
05/13/1941
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Download PDF 2241622
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Assignee:
George, Silber
Victor, Silber
Primary Class:
369/223
Other Classes:
369/256
International Classes:
G11B3/36
;
G11B3/00