Number | Date | Country | Kind |
---|---|---|---|
4122452 | Jul 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4877642 | Gartner et al. | Oct 1989 | |
4898748 | Kruger | Feb 1990 | |
5053244 | Kieser et al. | Oct 1991 | |
5078848 | Anttila et al. | Jan 1992 | |
5198263 | Stafford et al. | Mar 1993 |
Number | Date | Country |
---|---|---|
3322341 | Jan 1985 | DEX |
Entry |
---|
Hunlich et al., J. Opt. Commun. 8(1987) 4, 122-129 (no mo.). |