Number | Date | Country | Kind |
---|---|---|---|
8813667 | Jun 1988 | GBX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/GB89/00616 | 6/7/1989 | 11/6/1990 | 11/6/1990 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO89/12242 | 12/14/1989 |
Number | Name | Date | Kind |
---|---|---|---|
4479701 | Newton et al. | Oct 1984 | |
4586783 | Campbell et al. | May 1986 | |
4589725 | Dyott | May 1986 | |
4669816 | Thompson | Jun 1987 | |
4673270 | Gordon | Jun 1987 | |
4749249 | Hockaday et al. | Jun 1988 | |
4832437 | Kim et al. | May 1989 | |
4869570 | Yokohama et al. | Sep 1989 | |
4883335 | Alferness et al. | Nov 1989 |
Number | Date | Country |
---|---|---|
8201533 | May 1982 | EPX |
8204328 | Dec 1982 | EPX |
0149891 | Jul 1985 | EPX |
193966 | Oct 1986 | EPX |
0236712 | Jan 1987 | EPX |
0230269 | Jul 1987 | EPX |
0290253 | Sep 1988 | EPX |
2506954 | Dec 1982 | FRX |
2577590 | Aug 1986 | FRX |
1574044 | Sep 1980 | GBX |
2046466 | Nov 1980 | GBX |
2186994 | Aug 1987 | GBX |
Entry |
---|
Patent Abstracts of Japan, No. 58-95701, (Jun. 7, 1983) vol. 7, No. 196, Aug. 26, 1983, (P-219) (1341), "Optical Switch". |