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公开(公告)号：US2018071A
公开(公告)日：1935-10-22
申请号：US74621534
申请日：1934-09-29
Applicant: TELEFUNKEN GMBH
Inventor： EBERHARD KUBLE WILHELM , DIETRICH PRINZ
CPC classification number: H01J21/065 , C04B37/025 , C04B2237/32 , C04B2237/40 , C04B2237/84 , H01J5/32 , H01J19/34 , H01J19/50 , H01J2893/0003 , H01J2893/0008
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