Number | Date | Country | Kind |
---|---|---|---|
62-4741 | Jan 1987 | JPX | |
62-21030 | Jan 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4399502 | MacDonald et al. | Aug 1983 | |
4604690 | Crabtree et al. | Aug 1986 | |
4665555 | Alker et al. | May 1987 | |
4755808 | Bullock et al. | Jul 1988 | |
4772882 | Mical | Sep 1988 |
Entry |
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Ralston, Anthony ed., Encyclopedia of Computer Science and Engineering, 2nd edition, 1983, pp. 779-789. |