Neck stretching device in stringed instruments
United States Patent 3244054

Inventors:
Holger, Berglund Olof
Publication Date:
04/05/1966
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Assignee:
ALBIN HAGSTROM AB
Primary Class:
84/293
International Classes:
G10D3/06; G10D3/00
US Patent References:
2510775Attachment for fretted, stringed musical instruments
2998742Spanish guitar with means for converting to hawahan guitar