Title:
Electron emitter
United States Patent 2639399
US Patent References:
/1023485.html
- - 1023485

Thermionic electrode
- - 2117636

Thermionic electron emitter
- - 2501089

Geiger-muller counter for radioactive emission
- - 2502331


Inventors:
Lafferty, James M.
Publication Date:
05/19/1953
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Assignee:
GEN ELECTRIC
Primary Class:
313/345
Other Classes:
252/521.400, 313/337, 252/517, 252/521.100, 313/297
International Classes:
C25C7/02; H01J1/148; H01J17/06; C25C7/00; H01J1/13; H01J17/04