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公开(公告)号：US3303375A
公开(公告)日：1967-02-07
申请号：US29533363
申请日：1963-07-16
Applicant: INT STANDARD ELECTRIC CORP
Inventor： KLEPP GEORGE F , DALTON OLAF H , DE MENGEL GASTON PAKENHAM
IPC: H01J17/49
CPC classification number: H01J17/49 , H01J2893/0069
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