Number | Name | Date | Kind |
---|---|---|---|
2243849 | Kratky | Jun 1941 | |
3914639 | Barraeo et al. | Oct 1975 | |
4020383 | Labadini et al. | Apr 1977 | |
4143295 | Oguro | Mar 1979 | |
4296352 | Berlec et al. | Oct 1981 | |
4344816 | Craighead et al. | Aug 1982 | |
4519785 | Shaffer | May 1985 | |
4707632 | Walsh | Nov 1987 | |
4942331 | Bergman et al. | Sep 1990 | |
5152870 | Levinson | Oct 1992 |
Entry |
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H. G. Craighead, R. E. Howard, D. M. Tennant, "Selectively Emissive Refractory Metal Surfaces", 38 Applied Physics Letters 74 (1981). |
"The Application of Tungsten Wire as the Light Source in Incandescent Electric Lamps"; D. J. Jones; Oct. 1973; pp. 503-512. |
J. F. Waymouth, "Where Will the Next Generation of Lamps Come From?"; pp. 22-25 and FIG. 20, undated publication. |