Musical instruments – Keyboard type
Patent
1988-08-24
1990-12-18
Feifer, Melvin B.
Musical instruments
Keyboard type
D17 5
Patent
active
D03130355
REFERENCES:
patent: D282850 (1986-03-01), Futami
patent: D289412 (1987-04-01), Bellini
patent: 4635521 (1987-01-01), Bellini
International Design, Sep./Oct. 1985, p. 37.
Music Trades, Jul. 1987, p. 105.
Music Trades, Nov. 1987, p. 6.
Katsuhara Tatsuo
Kitsuyu Shigeru
Aronovich Adir
Casio Computer Co. Ltd.
Feifer Melvin B.
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