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公开(公告)号：US3108215A
公开(公告)日：1963-10-22
申请号：US59048456
申请日：1956-06-11
Applicant: SQUARE D CO
Inventor： PETTIT DORN L , MONTROSS ROBERT C , GILDEA HUTCHINSON
IPC: H02P27/02
CPC classification number: H02P27/02
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