Number | Date | Country | Kind |
---|---|---|---|
62-56526 | Mar 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4022602 | Pavlopoulos | May 1977 | |
4090776 | Bernal et al. | May 1978 | |
4111520 | Bernal | Sep 1978 | |
4403825 | Tangonan et al. | Sep 1983 | |
4609252 | Wong et al. | Sep 1986 | |
4652290 | Cho et al. | Mar 1987 | |
4710605 | Presby | Dec 1987 | |
4733927 | Jackson et al. | Mar 1988 |
Number | Date | Country |
---|---|---|
2180667A | Apr 1987 | GBX |
Entry |
---|
Oohara et al., Optical Communication, Nov. 1981, published by Corona-sha, p. 142. |