Music – Accessories – Teaching devices
Patent
1975-02-18
1976-05-25
Gonzales, John F.
Music
Accessories
Teaching devices
G09B 1508
Patent
active
039584879
ABSTRACT:
A teaching device for use with a musical keyboard or equivalent, such as a piano, organ or multistringed instrument; the device including a compact housing for containing control means, and indicating means including light emitting elements for positioning relative to the keys of a keyboard or selected positions on a multistringed musical instrument, and flexible optical cable means for transmitting light from a source to selected light emitting elements as determined by the operation of the control means.
REFERENCES:
patent: 2909956 (1959-10-01), Radcliffe
patent: 3649098 (1972-03-01), Suverison
patent: 3709085 (1973-01-01), Del Castillo
patent: 3744366 (1973-07-01), Del Castillo
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