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公开(公告)号：US3083328A
公开(公告)日：1963-03-26
申请号：US85878459
申请日：1959-12-10
Applicant: BELL TELEPHONE LABOR INC
Inventor： PAUL MALLERY , GEORGE RUPPRECHT EMIL
CPC classification number: H02P7/288 , H02M7/2173 , H02P7/293
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