Number | Date | Country | Kind |
---|---|---|---|
63-254374 | Oct 1988 | JPX |
This application is a continuation of now abandoned application, Ser. No. 07/418,637 filed on Oct. 10, 1989, now abandoned.
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---|---|---|---|
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4075702 | Davies | Feb 1978 | |
4120037 | Sato | Oct 1978 | |
4158236 | Levy | Jun 1979 | |
4159536 | Kehoe et al. | Jun 1979 | |
4224675 | Pinkerman | Sep 1980 | |
4253143 | Onodera et al. | Feb 1981 | |
4442506 | Endfield | Apr 1984 | |
4658374 | Tanimoto et al. | Apr 1987 | |
4737040 | Moon | Apr 1988 | |
4754418 | Hara | Jun 1988 | |
4758977 | Morimoto et al. | Jul 1988 | |
4832191 | Gerver et al. | May 1989 | |
4846598 | Livits | Jul 1989 | |
4860234 | Lapeyre | Apr 1989 | |
4891777 | Lapeyre | Jan 1990 | |
4918631 | Hara et al. | Apr 1990 | |
4927279 | Morgan | May 1990 |
Number | Date | Country |
---|---|---|
3318622 | Nov 1984 | DEX |
0263251 | Dec 1985 | JPX |
2149946 | Jun 1985 | GBX |
2156552 | Oct 1985 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 7, No. 35 (P-175)[1180]-Feb. 10, 1983. |
8207 I.E.E.E. Micro, Apr. 7, 1987, No. 2, New York, N.Y. pp. 8-14. |
"The Calcupen" by Chafitz, Washington Star, Nov. 9, 1975. |
"Keyboard for Handheld Computer", IBM Technical Disclosure Bulletin, vol. 27, No. 10A, Mar. 1985, pp. 5643-5645. |
Number | Date | Country | |
---|---|---|---|
Parent | 418637 | Oct 1989 |