Number | Date | Country | Kind |
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3-034026 | Feb 1991 | JPX |
Number | Name | Date | Kind |
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4715818 | Shapiro et al. | Dec 1987 | |
4759717 | Larochelle et al. | Jul 1988 | |
5027198 | Yoshioka | Jun 1991 | |
5262764 | Inamori | Nov 1993 | |
5263869 | Ziv-El | Nov 1993 |
Number | Date | Country |
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0410378 | Jan 1991 | EPX |
54-45526 | Apr 1979 | JPX |
Entry |
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"The Point of the Pen", GO's Vice Pres. of Software Examines new PenPoint Operating System by R. M. Carr. |
"Groupware", by Robert Johansen, pp. 31-74 (Nikkei BP Company, Apr. 24, 1990, translated by Izumi Aizu). |
Tandy, "Color Computer Disk System", 1987. p. 115. |
Korte, W. "Multimedia BK Technology for the Support of Distributed Group Work", Wideband Communication (DE) 43(12):872-878, 1990. |