Electronic grand piano

Details Electronic grand piano Electronic grand piano

1989-05-22

1991-12-03

Ansher, Bernard

Musical instruments

Keyboard type

Piano or cabinet therefor

D17 7, 84177

Patent

active

D03220893

REFERENCES:
patent: D74770 (1928-03-01), Zaiser
patent: D78246 (1929-04-01), Zaiser
patent: D168962 (1953-03-01), Millington
patent: D256130 (1980-07-01), Ohta
patent: D310232 (1990-08-01), Dong
patent: 3969970 (1976-07-01), Swift et al.
Music Trades, Jan. 1989, p. 175.
Music Trades, Jan. 1989, p. 34.

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