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公开(公告)号:US2929038A
公开(公告)日:1960-03-15
申请号:US62715756
申请日:1956-12-10
Applicant: ASEA AB
Inventor: GEORG SONESSON
IPC: H01F27/245
CPC classification number: H01F27/245
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公开(公告)号:US2795754A
公开(公告)日:1957-06-11
申请号:US37127353
申请日:1953-07-30
Applicant: ASEA AB
Inventor: GEORG SONESSON
IPC: G05F1/32 , H03F9/04 , H05B41/391
CPC classification number: G05F1/32 , H03F9/04 , H05B41/391 , Y10T307/25
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公开(公告)号:US2665394A
公开(公告)日:1954-01-05
申请号:US16911450
申请日:1950-06-20
Applicant: ASEA AB
Inventor: ALGOT ARVIDSSON , HUGO ELMLUND , GEORG SONESSON
IPC: H05B41/391
CPC classification number: H05B41/391 , Y10T307/297
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