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公开(公告)号：US3183393A
公开(公告)日：1965-05-11
申请号：US18908862
申请日：1962-04-20
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： PATERSON JAMES E
CPC classification number: H01J17/066 , C22C21/00 , H01J17/38 , H01J2893/0065 , H01J2893/0066
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