Number | Name | Date | Kind |
---|---|---|---|
3586442 | Tripp | Jun 1971 | |
3664742 | Witte et al. | May 1972 |
Number | Date | Country |
---|---|---|
754220 | Aug 1980 | SUX |
Entry |
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Murty, Applied Optics, Jul. 1972, vol. 11, No. 7, pp. 1637, 1638. |
Peisakhson, Sov. J. Opt. Technol., vol. 47, No. 2, Feb. 1980, pp. 73, 74. |
Murty, Applied Optics, vol. 11, No. 10, Oct. 1972, pp. 2286-2288. |