Musical instruments – Keyboard type
Patent
1988-08-11
1990-12-18
Feifer, Melvin B.
Musical instruments
Keyboard type
D17 5
Patent
active
D03130347
REFERENCES:
patent: D200439 (1965-02-01), Rhodes
patent: D258214 (1981-02-01), Kira
patent: 4635521 (1987-01-01), Bellini
patent: 4653375 (1987-03-01), Honda et al.
HFD, 9/1/86, p. 64.
HFD, 3/14/88, p. 103 (Casio Keyboard).
Aronovich Adir
Casio Computer Co. Ltd.
Feifer Melvin B.
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