Number | Date | Country | Kind |
---|---|---|---|
2853953 | Dec 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2932913 | Hannon | Apr 1960 | |
3391479 | Buzzell et al. | Jul 1968 | |
3457661 | Peters | Jul 1969 | |
4092234 | Horst et al. | May 1978 | |
4269915 | Moraw | May 1981 |
Number | Date | Country |
---|---|---|
2308876 | Sep 1973 | DEX |
2639464 | Nov 1977 | DEX |
2657246 | Feb 1978 | DEX |
2734581 | Jun 1978 | DEX |
Entry |
---|
Von F. Bestenreiner et al., "Optik", vol. 28, 1968/69, pp. 263-287. |
M. T. Gale, "Optics Communications", vol. 18, No. 3, Aug. 1976, pp. 293-303. |
KiKnop, "Optics Communications" vol. 18, No. 3, pp. 298-302. |