Electronic keyboard instrument

Musical instruments – Keyboard type

Design Patent

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Details

Design Patent

active

D0577056

CLAIM:
The ornamental design for an electronic keyboard instrument, as shown and described.

REFERENCES:
patent: D312266 (1990-11-01), Shibasaki
patent: D320611 (1991-10-01), Ono
patent: D320612 (1991-10-01), Ohki
patent: D320804 (1991-10-01), Ohki
patent: D348279 (1994-06-01), Nakada
patent: D355666 (1995-02-01), Mikage
patent: 5492291 (1996-02-01), Otani
patent: 1005014 (2000-05-01), None
patent: 11038974 (1999-02-01), None
patent: 2006189515 (2006-07-01), None
patent: 2007025444 (2007-02-01), None
“Music Trades.” vol. 153 (9-11). Dec. 2005. p. 167. GP10a—GP10 Digital Pianos: bottom center of page.

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