Electronic keyboard musical instrument

- Yamaha Corporation
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Description

FIG. 1 is a perspective view of electronic keyboard musical instrument looking from the right-side upper direction thereof;

FIG. 2 is a plan view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D317319 June 4, 1991 Mine
D317774 June 25, 1991 Mizushima
D320032 September 17, 1991 Hoshina
D320033 September 17, 1991 Hoshina
D322268 December 10, 1991 Yamawaki
D322269 December 10, 1991 Yamawaki
D326468 May 26, 1992 Jeon
D340469 October 19, 1993 Nakada
D345370 March 22, 1994 Miyamoto et al.
D345574 March 29, 1994 Mizushima
D345990 April 12, 1994 Nakatsuka
4653375 March 31, 1987 Honda et al.
Foreign Patent Documents
2-110595 April 1990 JPX
Other references
  • W. Bell & Co, 1987-1988 p. 221 (Casio's HT-700 Keyboard). Music Trades, Jan. 1989 p. 159 Casio's HT-6000. Manny's Mail Box Music Catalog, Winter 1992-1993 p. 77 Yamaha's PSR-200. Music Trades 1989 Feb. 1989 p. 62 (Peavey's Electronic Keyboard).
Patent History
Patent number: D357269
Type: Grant
Filed: Jun 23, 1993
Date of Patent: Apr 11, 1995
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Masafumi Ito (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 0/9,874
Classifications
Current U.S. Class: Keyboard Type (D17/1)