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公开(公告)号：US2104784A
公开(公告)日：1938-01-11
申请号：US4965035
申请日：1935-11-14
Applicant: AEG
Inventor： ERICH WIEGAND , WILFRIED MEYER , HANS PULFRICH
CPC classification number: H01J5/40 , H01B1/08 , H01J5/04 , H01J5/32 , H01J5/46 , H01J19/02 , H01J2893/0001 , H01J2893/0035
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