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公开(公告)号：US3265921A
公开(公告)日：1966-08-09
申请号：US20960962
申请日：1962-07-13
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： MACDONELL JAMES P , NOILES DOUGLAS G
IPC: H01J19/38
CPC classification number: H01J19/38 , H01J2893/0015
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