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公开(公告)号:US2120352A
公开(公告)日:1938-06-14
申请号:US13054737
申请日:1937-03-12
Applicant: ASEA AB
Inventor: NILS ERICSON
IPC: H02K49/02
CPC classification number: H02K49/02
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公开(公告)号:US2320721A
公开(公告)日:1943-06-01
申请号:US28508739
申请日:1939-07-18
Applicant: ASEA AB
Inventor: NILS ERICSON
CPC classification number: F16F15/1414 , B63H1/15 , B63H23/35 , B63H2023/342 , F16F15/18 , H02K49/00 , H02K49/02 , Y10T74/2127
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公开(公告)号:US2311331A
公开(公告)日:1943-02-16
申请号:US17908337
申请日:1937-12-10
Applicant: ASEA AB
Inventor: NILS ERICSON
IPC: G01L3/14
CPC classification number: G01L3/1492
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