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公开(公告)号：US2429295A
公开(公告)日：1947-10-21
申请号：US47903643
申请日：1943-03-13
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： QUITTER JOHN P
IPC: H01J23/213
CPC classification number: H01J23/213
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公开(公告)号：US2398582A
公开(公告)日：1946-04-16
申请号：US44236142
申请日：1942-05-09
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： DINNICK GEORGE M , QUITTER JOHN P
IPC: H01J19/28
CPC classification number: H01J19/28 , H01J2893/0013
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