Title:
Emissive cathode
Document Type and Number:
United States Patent 2081864
Inventors:
Publication Date:
05/25/1937
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Referenced by:
Export Citation:
Assignee:
ELECTRONS INC OF DELAWARE
Primary Class:
Other Classes:
428/379, 252/518.100, 252/521.200, 427/77, 148/273, 427/226
International Classes:
H01J17/06; H01J17/04