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公开(公告)号:US3309687A
公开(公告)日:1967-03-14
申请号:US17504562
申请日:1962-02-23
Applicant: PHIPPS JOHN D
Inventor: PHIPPS JOHN D
CPC classification number: H01H35/186 , B63B2201/26 , G01F23/36 , H01H29/20
公开(公告)号:US3309687A
公开(公告)日:1967-03-14
申请号:US17504562
申请日:1962-02-23
Applicant: PHIPPS JOHN D
Inventor: PHIPPS JOHN D
CPC classification number: H01H35/186 , B63B2201/26 , G01F23/36 , H01H29/20