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公开(公告)号：US3447057A
公开(公告)日：1969-05-27
申请号：US3447057D
申请日：1966-07-14
Applicant: CUTLER HAMMER INC
Inventor： BROWN HARRY W , THOMPSON LARRY D
CPC classification number: H02P25/14 , H01H9/061 , H01H9/52 , H02M5/2573 , Y10S323/905 , Y10S388/917 , Y10S388/937
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