Title:
Musical instrument
United States Patent 1893895
Inventors:
Hammond Jr., John Hays
Publication Date:
01/10/1933
Export Citation:
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Assignee:
Hammond Jr., John Hays
Primary Class:
84/723
Other Classes:
84/189, 381/118, 984/367
International Classes:
G10H3/18; G10H3/00
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