Electronic calculator
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Description
FIG. 1 is a top plan view of the electronic calculator showing our new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof; and
FIG. 7 is a right front and top perspective view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D263602 | March 30, 1982 | Yoshioka et al. |
D269624 | July 5, 1983 | Sakata |
D270646 | September 20, 1983 | Sakata |
D273393 | April 10, 1984 | Sakamoto |
D273502 | April 17, 1984 | Sakata |
D273593 | April 24, 1984 | Sakamoto |
D275769 | October 2, 1984 | Yamada |
D276242 | November 6, 1984 | Sakamoto |
D284200 | June 10, 1986 | Hayashi |
D287139 | December 9, 1986 | Hayashi |
4507745 | March 26, 1985 | Agrawal |
- Design News, 7/7/86; p. 105; Casio fx-7000G Scientific Calculator.
Patent History
Patent number: D317777
Type: Grant
Filed: Jun 14, 1988
Date of Patent: Jun 25, 1991
Assignee: Sharp Corporation (Osaka)
Inventors: Hiroshi Sakaguchi (Osaka), Keiichi Koyama (Osaka)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/206,687
Type: Grant
Filed: Jun 14, 1988
Date of Patent: Jun 25, 1991
Assignee: Sharp Corporation (Osaka)
Inventors: Hiroshi Sakaguchi (Osaka), Keiichi Koyama (Osaka)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 7/206,687
Classifications