Title:
Process of manufacturing electron-emitting cathodes
United States Patent 1545256

Inventors:
Hocker, Carl D.
Publication Date:
07/07/1925
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Assignee:
WESTERN ELECTRIC CO
Primary Class:
427/11
Other Classes:
252/518.100, 252/514, 427/77, 428/389, 106/272
International Classes:
H01J9/04