Electronic keyboard musical instrument

Musical instruments – Keyboard type

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D03556662

REFERENCES:
patent: D282850 (1986-03-01), Futami
patent: D317319 (1991-06-01), Mine
patent: D317774 (1991-06-01), Mizushima
patent: D320032 (1991-09-01), Hoshina
patent: D320033 (1991-09-01), Hoshina
patent: D320611 (1991-10-01), Ono
patent: D322268 (1991-12-01), Yamawaki
patent: D322269 (1991-12-01), Yamawaki
patent: D325214 (1992-04-01), Hoshina
patent: D340469 (1993-10-01), Nakada
patent: D345370 (1994-03-01), Miyamoto et al.
patent: D348279 (1994-06-01), Nakada
patent: 4653375 (1987-03-01), Honda et al.
Music Trades, Feb. 1990 p. 117 (Kawai Portable Keyboard).
Hong Kong Enterprise Catalog, Oct. 1990 p. 182 (Keyboard, Item 734).
Manny's Mail Box Music Catalog, Winter 1992-1993 p. 77 Yamaha's PSR-200.
Music Trades, Feb. 1989 p. 62 (Peavey's Electronic Keyboard).

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