Number | Name | Date | Kind |
---|---|---|---|
2190657 | Germer | Feb 1940 | |
2205000 | Spanner | Jun 1940 | |
3858078 | Koury | Dec 1974 | |
3900237 | Marcucci | Aug 1975 | |
4056751 | Gungle et al. | Nov 1977 |
Entry |
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Koury et al., "A New Generation of Metal Halide Lamps", Journal of the IES, vol. 4, No. 2, pp. 106-110, Jan. 1975. |