Portable electric piano

Details Portable electric piano Portable electric piano

1989-11-29

1991-12-31

Ansher, Bernard

Musical instruments

Keyboard type

D17 5

Patent

active

D03228002

REFERENCES:
patent: D282850 (1986-03-01), Futami
patent: D312651 (1990-12-01), Yamawaki
patent: D313033 (1990-12-01), Mizushima
patent: D313035 (1990-12-01), Katsuhara et al.
patent: 4653375 (1987-03-01), Honda et al.
Radio Shack Catalog, 1988, p. 52.
W. Bell & Co. Catalog, 1987-1988, p. 220 (Yamaha PSS-470 Keyboard).
Music Trades, Feb. 1989, p. 24, (Kaman's Matrix MX 6 Keyboard).

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