Title:
Boride cathodes
United States Patent 2659685
Inventors:
Lafferty, James M.
Publication Date:
11/17/1953
Export Citation:
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Assignee:
GEN ELECTRIC
Primary Class:
428/627
Other Classes:
148/316, 148/317, 313/346R, 427/77, 428/408
International Classes:
C25C7/02; H01J1/148; H01J17/06
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US Patent References:
2447973Coated anode for electron discharge devices
2438732Electron tube cathode