Combined wristwatch and calculator

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

FIG. 1 is a top plan view of a combined wristwatch and calculator showing my new design, the rear being substantially plain and unornamented;

FIG. 2 is a right side elevational view thereof; the left side being substantially similar thereof;

FIG. 3 is a top plan view thereof with the watch in an open position;

FIG. 4 is a cross-sectional view thereof as taken from line X--X of FIG. 1.

Referenced Cited
U.S. Patent Documents
D163378 May 1951 Gibbons
D278605 April 30, 1985 Didisheim
D279081 June 4, 1985 Suzuki
D279172 June 11, 1985 Hysek
D285662 September 16, 1986 Kano
D289502 April 28, 1987 Woomer
D295729 May 17, 1988 Suzuki
D296676 July 12, 1988 Sakuai
4444513 April 24, 1984 Proellochs
4508459 April 2, 1985 Hashimoto
Foreign Patent Documents
0052880 March 1982 JPX
Other references
  • Hong Kong Enterprises-1/82-p. 250-Calc. Watch at top-left. Merchandising-3/82-p. 5-Dig. Calc. Watch near top-left and middle-right.
Patent History
Patent number: D303503
Type: Grant
Filed: Jul 17, 1986
Date of Patent: Sep 19, 1989
Assignee: Fushiba Electronic (China) Development Co.
Inventor: Wai M. Kai (Kowloon)
Primary Examiner: Nelson C. Holtje
Application Number: 6/886,563