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Stone guitar with tuned neck - us pat 1973
https://www.stompboxes.co.uk/forum/viewtopic.php?t=7504
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Stone guitar with tuned neck - us pat 1973
Posted:
Fri Aug 13, 2010 12:28 am
by
Bert Ohlsson
http://www.freepatentsonline.com/3769871.pdf
