Combined ruler, clock and calculator

Description

FIG. 1 is a top plan view of a combined ruler, clock and calculator, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being substantially a mirror image thereto;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof.

Referenced Cited
U.S. Patent Documents
D201300 June 1965 Seely
D248995 August 15, 1978 Hazama
D258740 March 31, 1981 Matsumoto
D271025 October 18, 1983 Li
D279381 June 25, 1985 Leung
1334145 March 1920 Eaton
4158229 June 12, 1979 Woo
4282571 August 4, 1981 Giovannoli
4382280 May 3, 1983 Mandel
4404643 September 13, 1983 Ojima
4530068 July 16, 1985 Nakanishi
Patent History
Patent number: D284199
Type: Grant
Filed: Aug 2, 1983
Date of Patent: Jun 10, 1986
Inventor: Robert S. K. Li (Hong Kong)
Primary Examiner: Nelson C. Holtje
Law Firm: Ladas & Parry
Application Number: 6/519,557