Keyboard

Details Keyboard Keyboard

1988-10-11

1991-05-07

Ansher, Bernard

Musical instruments

Keyboard type

D17 9

Patent

active

D03167224

REFERENCES:
patent: D258899 (1981-04-01), Hayama et al.
patent: D282850 (1986-03-01), Futami
patent: D312266 (1990-11-01), Shibasaki
patent: 4619175 (1986-10-01), Matsuzaki
Best Catalog, 1984-1985, p. 326 (Casio Keyboard, Item 1).
The Music Trades, Feb. 1986, p. 29 (Bontempi X301 and X451 Keyboards).
The Music Trades, Jan. 1987, p. 101 (Casio Keyboard).

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