Combined grand piano keyboard cover and auto-play control unit

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Description

FIG. 1 is a perspective view of a combined grand piano keyboard cover and auto-play control unit showing my new design;

FIG. 2 is a top plan view of the combined cover and auto-play unit;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a right side elevational view thereof.

The broken lines showing of a grand piano are for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D248993 August 15, 1978 Oliver et al.
D255366 June 10, 1980 Karaki et al.
D256130 July 29, 1980 Ohta
3969970 July 20, 1976 Swift et al.
Patent History
Patent number: D311412
Type: Grant
Filed: May 19, 1987
Date of Patent: Oct 16, 1990
Assignee: Nippon Gakki Seizu Kabushiki Kaisha
Inventor: Kunio Ohta (Hamamatsu)
Primary Examiner: Melvin B. Feifer
Assistant Examiner: Adir Aronovich
Law Firm: Ostrolenk, Faber, Gerb & Soffen
Application Number: 7/51,997
Classifications
Current U.S. Class: Element Or Attachment (D17/9)