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公开(公告)号：US3258570A
公开(公告)日：1966-06-28
申请号：US35029564
申请日：1964-03-09
Applicant: ASEA AB
Inventor： GUSTAV SINDAHL KARL , SVEN AKERVALL
IPC: H01H33/00
CPC classification number: H01H33/008
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公开(公告)号：US3417217A
公开(公告)日：1968-12-17
申请号：US54268566
申请日：1966-04-14
Applicant: ASEA AB
Inventor： HAAKON FORWALD , WALTER PUCHER , GUSTAV SINDAHL KARL
IPC: H01H33/16 , H01H33/70 , H01H33/867
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