World time zone indicator/calculator


FIG. 1 is a front elevational view of a world time zone indicator/calculator showing my new design;

FIG. 2 is a typical side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D95205 April 1935 Harrison
D132975 July 1942 Jones
D141710 June 1945 Guttmann
D146500 March 1947 Freel
D195579 July 1963 Ruderian
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Foreign Patent Documents
213272 May 1941 CHX
Patent History
Patent number: D298837
Type: Grant
Filed: Oct 9, 1985
Date of Patent: Dec 6, 1988
Inventor: Robert J. Thomas (Dearborn, MI)
Primary Examiner: Nelson C. Holtje
Attorney: Joseph J. Goluban
Application Number: 6/785,771