Metal discharge tube and apparatus
United States Patent 2173473

Inventors:
Edwards, Donald V.
Publication Date:
09/19/1939
View Patent Images:
Download PDF 2173473 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
ELECTRONS INC
Primary Class:
174/50.560
Other Classes:
313/247, 313/38, 174/50.550, 174/152GM, 313/242, 313/271, 313/248, 403/270, 220/2.200, 313/343, 220/2.30R, 313/290, 174/50.540, 174/50.580, 174/50.630, 313/273
International Classes:
H01J5/28; H01J5/00