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公开(公告)号：US3481194A
公开(公告)日：1969-12-02
申请号：US3481194D
申请日：1966-10-05
Applicant: ASEA AB
Inventor： SIVILOTTI OLIVO GIUSEPPE , CARLSSON PERVI
CPC classification number: B21B38/02 , B21B37/50 , F16B15/06 , F16B2015/0076 , G01L5/045
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