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Drawing of

Ergonomic Stringed Instrument and Ergonomic Roundback Guitar

US 2005/0022650 A1 2004 Frank I. Untermyer, Robert Darren Wallace, David McDonald, Scott Keeley, Julian Groeli US Ergonomic Body Design 11 drawings

Novel ergonomic guitar body design incorporating an angled waist on the treble side of the roundback bowl and a contoured ridge along the bass side. The angled waist facilitates ergonomic support on the performer leg and allows correct playing position on either leg. The contoured ridge with a concave portion stabilizes the guitar and prevents rocking when held in seated or standing positions.

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