Mechanical tuning device for hawaiian guitar
United States Patent 2828660
US Patent References:
/0490528.html
- - 0490528

/0493810.html
- - 0493810

Musical instrument
- - 2654283

Guitar tuning device
- - 2662439


Inventors:
Paul, Paulsen
Publication Date:
04/01/1958
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Assignee:
Paul, Paulsen
Primary Class:
84/312R
Other Classes:
84/297R, D17/20
International Classes:
G10D1/08; G10D1/00
Foreign References:
AT138476B