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公开(公告)号：US2638120A
公开(公告)日：1953-05-12
申请号：US76670647
申请日：1947-08-06
Applicant: ASEA AB
Inventor： EMIL STENKVIST , ERIK GUDMUNDSSON
CPC classification number: H01H33/555 , F16K11/20 , H01H35/18 , H01H35/40 , H02H5/08 , Y10T137/87515 , Y10T137/87539 , Y10T137/88062
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公开(公告)号：US2470553A
公开(公告)日：1949-05-17
申请号：US76670547
申请日：1947-08-06
Applicant: ASEA AB
Inventor： ERIK GUDMUNDSSON
IPC: H02H5/08
CPC classification number: H01H33/555 , H01H35/18 , H01H35/40
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