Electronic keyboard musical instrument

- Yamaha Corp.
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Description

FIG. 1 is a top front perspective view of an electronic keyboard musical instrument, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D282850 March 4, 1986 Futami
D305772 January 30, 1990 Kitsuyu
4653375 March 31, 1987 Honda et al.
Other references
  • The Music Trades, Oct. 1985, p. 13. HFD, 8/24/87, p. 98 (Casio SK-200 Keyboard).
Patent History
Patent number: D313033
Type: Grant
Filed: Jun 13, 1988
Date of Patent: Dec 18, 1990
Assignee: Yamaha Corp.
Inventor: Kazuyuki Mizushima (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Ostrolenk, Faber, Gerb & Soffen
Application Number: 7/206,330
Classifications
Current U.S. Class: Keyboard Type (D17/1)