Automatically relegendable keyboard

Details Automatically relegendable keyboard Automatically relegendable keyboard

1980-09-09

1982-09-07

Brigance, Gerald L.

Communications: electrical

Audible indication

Percussion-type sound producer

340365R, G06C 702

Patent

active

043486606

ABSTRACT:
An automatically relegendable keyboard apparatus includes:

REFERENCES:
patent: 3200375 (1965-08-01), Lutz
patent: 3717870 (1973-02-01), Mathews et al.
patent: 3760360 (1973-09-01), Reynolds et al.
patent: 4017848 (1977-04-01), Tannas, Jr.
patent: 4257179 (1981-03-01), Oka et al.
patent: 4274081 (1981-06-01), Nomura et al.

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