Musical instruments – Keyboard type
Patent
1989-05-23
1991-06-04
Ansher, Bernard
Musical instruments
Keyboard type
Patent
active
D03173194
REFERENCES:
patent: D282850 (1986-03-01), Futami
patent: D289411 (1987-04-01), Bellini
patent: D289412 (1987-04-01), Bellini
patent: D290370 (1987-06-01), Bellini
patent: D312651 (1990-12-01), Yamawaki
patent: D313032 (1990-12-01), Amiya
patent: D313033 (1990-12-01), Mizushima
patent: D313034 (1990-12-01), Koide
patent: D313035 (1990-12-01), Katsuhara et al.
Music Trades, Jul. 1987, p. 105.
Stereo Review, Dec. 1987, p. 59 (Keyboard at the top).
Music Trades, Nov. 1988, p. 41.
Ansher Bernard
Aronovich Adir
Yamaha Corporation
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