Musical instruments – Keyboard type
Patent
1989-10-19
1992-02-25
Ansher, Bernard
Musical instruments
Keyboard type
Patent
active
D03242307
REFERENCES:
patent: D282850 (1986-03-01), Futami
patent: D289412 (1987-04-01), Bellini
patent: D317931 (1991-07-01), Koide et al.
patent: D318058 (1991-07-01), Koide
patent: 4635521 (1987-01-01), Bellini
HFD, 8/24/87, p. 48, (Casio SK-2100 Keyboard).
Radio Shack Catalog, 1990, p. 35, (Concertmate-450).
Ansher Bernard
Aronovich Adir
Casio Computer Co. Ltd.
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