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公开(公告)号:US2473144A
公开(公告)日:1949-06-14
申请号:US75864547
申请日:1947-07-02
Applicant: ASEA AB
Inventor: SVEN GYNT
IPC: G01R31/34
CPC classification number: G01R31/343
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公开(公告)号:US2711490A
公开(公告)日:1955-06-21
申请号:US33898253
申请日:1953-02-26
Applicant: ASEA AB
Inventor: SVEN GYNT , AKE LINDSTEDT
IPC: H02K3/52
CPC classification number: H02K3/527
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