Number | Name | Date | Kind |
---|---|---|---|
3265910 | Thomas | Aug 1966 | |
3279028 | Hall et al. | Oct 1966 | |
3322978 | Lary et al. | May 1967 | |
3702408 | Longsderff et al. | Nov 1972 | |
3719532 | Falkenberg et al. | Mar 1973 | |
4772816 | Spence | Sep 1988 | |
4927599 | Allen | May 1990 |
Number | Date | Country |
---|---|---|
878521 | Jun 1953 | DEX |
106978 | Apr 1967 | GBX |
Entry |
---|
S. W. Angrist, "Direct Energy Conversion", Chpt. 6, Themionic Generator; May 1977; Boston, Mass. |