Electronic calculator
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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
Other references
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. |
- 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
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)