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公开(公告)号：US3105166A
公开(公告)日：1963-09-24
申请号：US78701159
申请日：1959-01-15
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： CHOYKE WOLFGANG J , PATRICK LYLE A
IPC: H01J1/308
CPC classification number: H01J1/308
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