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公开(公告)号：US3444490A
公开(公告)日：1969-05-13
申请号：US3444490D
申请日：1966-09-30
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： KRUMMEL DONALD E , BOWLES DAVID L
CPC classification number: H01H51/2209 , H01F7/122 , H01F7/124 , H01F7/1615 , H01F7/1646 , H01H50/20 , H01H50/22
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