Synchronized equation clock

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of a synchronized equation clock showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right-side view thereof; and,

FIG. 6 is a left-side view thereof.

Referenced Cited
U.S. Patent Documents
D163256 May 1951 Clarke
D166952 May 1952 Clarke
D252414 July 17, 1979 Camara
D302667 August 8, 1989 Tobias
D333101 February 9, 1993 Krieger
D344025 February 8, 1994 Shimamura
D351809 October 25, 1994 Nunes
3486322 December 1969 Abend
Patent History
Patent number: D413270
Type: Grant
Filed: Feb 18, 1998
Date of Patent: Aug 31, 1999
Assignee: Ziweixing Electronic Industrial Corporation (Chaoyang)
Inventor: Xiuling Shun (Jinan)
Primary Examiner: Nelson C. Holtje
Law Firm: Armstrong, Westerman, Hattori, McLeland & Naughton
Application Number: 0/83,769
Classifications
Current U.S. Class: Clock Or Clock Case (D10/1); Map Or Globe (D10/10); Simulative (D10/6)
International Classification: 1001;