U.S. patent number D317,618 [Application Number 07/421,693] was granted by the patent office on 1991-06-18 for electronic calculator. This patent grant is currently assigned to Sharp Corporation. Invention is credited to Kouji Nishida, Masaji Sawada.
United States Patent | D317,618 |
Sawada , et al. | June 18, 1991 |
Inventors: | Sawada; Masaji (Osaka, JP), Nishida; Kouji (Osaka, JP) |
---|---|
Assignee: | Sharp Corporation (Osaka,
JP) |
Appl. No.: | 07/421,693 |
Filed: | October 16, 1989 |
Apr 19, 1989 [JP] | 1-14485 | |||
Current U.S. Class: | D18/7 |
Field of Search: | ;D18/6,7 ;200/5A ;235/6R ;364/706-710 |
D269624 | July 1983 | Sakata |
D273304 | April 1984 | Sakata |
D273393 | April 1984 | Sakamoto |
D273593 | April 1984 | Sakamoto |
D275769 | October 1984 | Yamada |
D276242 | November 1984 | Sakamoto |
D287139 | December 1986 | Hayashi |
D297947 | October 1988 | Yubisui et al. |
D303681 | September 1989 | Sakaguchi et al. |
D307032 | April 1990 | Sawada et al. |
D309747 | August 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.. |
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