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公开(公告)号：US3413508A
公开(公告)日：1968-11-26
申请号：US60265366
申请日：1966-12-19
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ELAM PITKJAAN
CPC classification number: H01K9/08 , H01J5/24 , H01J2893/0039
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