Music – Instruments – Stringed
Patent
1978-04-07
1979-02-06
Franklin, Lawrence R.
Music
Instruments
Stringed
G10D 306
Patent
active
041378130
ABSTRACT:
A stringed musical instrument with fixed frets is provided with the capability of employing more than one tonal scale. At least two fretted fingerboards are provided with frets located at different relative positions on the respective fingerboards. A transversely opening groove is formed on the instrument beneath and parallel to the strings. On the underside of each fingerboard, a corresponding groove is provided which opens transversely with respect to the fingerboard. Each of the fingerboards can be mounted to the instrument when desired by engaging the groove on the selected fingerboard with the corresponding groove on the instrument. A mechanism is provided for forcing the grooves together so that the fingerboard is secured to the instrument in a releasable fashion.
REFERENCES:
patent: 1554802 (1925-09-01), Dyer
patent: 3398622 (1968-08-01), Smith
patent: 4064780 (1977-12-01), Bond
de Man Heiko T.
Felgen Michael J.
Stone Thomas D.
Franklin Lawrence R.
Intonation Systems
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