Combined calculator ruler, and desk tray

- RJP Electronics Limited

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Description

FIG. 1 is a top plan view of a combined calculator, ruler, and desk tray showing my new design in closed condition;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view;

FIG. 4 is a left end elevational view;

FIG. 5 is a right end elevational view; and

FIG. 6 is a perspective view of the design in open condition.

Referenced Cited
U.S. Patent Documents
D157534 February 1950 Price
D245109 July 19, 1977 Yoshioka
D279381 June 25, 1985 Leung
Foreign Patent Documents
634696 February 1928 FRX
720123 February 1932 FRX
1147669 November 1957 FRX
Patent History
Patent number: D285094
Type: Grant
Filed: Mar 16, 1984
Date of Patent: Aug 12, 1986
Assignee: RJP Electronics Limited (Central)
Inventor: Robert S. K. Li (Central)
Primary Examiner: Louis S. Zarfas
Law Firm: Ladas & Parry
Application Number: 6/590,886