Electronic calculator

- Sharp Corporation
Description

FIG. 1 is a right, front and top perspective view of an electronic calculator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D269624 July 5, 1983 Sakata
D273304 April 3, 1984 Sakata
D273393 April 10, 1984 Sakamoto
D273593 April 24, 1984 Sakamoto
D275769 October 2, 1984 Yamada
D276242 November 6, 1984 Sakamoto
D287139 December 9, 1986 Hayashi
D297947 October 4, 1988 Yubisui et al.
D303681 September 26, 1989 Sakaguchi et al.
D307032 April 3, 1990 Sawada et al.
D309747 August 7, 1990 Sakaguchi et al.
Other references
  • Best Catalogue; 1983/84; p. 328, #1--TI Professional Business Analyst Calc. Model BA-55. Radio Shack Catalogue; p. 161, #EC-4020. HFD--Retailing Home Furnishings, Jun. 30, 1980, p. 81; Toshiba LC-840WA.
Patent History
Patent number: D317618
Type: Grant
Filed: Oct 16, 1989
Date of Patent: Jun 18, 1991
Assignee: Sharp Corporation (Osaka)
Inventors: Masaji Sawada (Osaka), Kouji Nishida (Osaka)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/421,693
Classifications
Current U.S. Class: With Keyboard (D18/7)