United States Patent 2733378
US Patent References:
Manufacture of filaments or cathodes for electric lamps, thermionic tubes and the like
- - 1558961
Electron emitter and process of making the same
- - 1700454
Luminous tube
- - 1879740
Process of coating an electron emitter
- - 2053090
Manufacture of filaments or cathodes for electric lamps, thermionic tubes and the like
- - 1558961
Electron emitter and process of making the same
- - 1700454
Luminous tube
- - 1879740
Process of coating an electron emitter
- - 2053090
Publication Date:
01/31/1956
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Primary Class:
Other Classes:
313/356, 313/337
International Classes:
H01J1/28; H01J1/20