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公开(公告)号:US2518872A
公开(公告)日:1950-08-15
申请号:US5963948
申请日:1948-11-12
Applicant: ASEA AB
Inventor: DREYFUS LUDWIG A
IPC: H05B6/08
CPC classification number: H05B6/08
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公开(公告)号:US2517098A
公开(公告)日:1950-08-01
申请号:US5970548
申请日:1948-11-12
Applicant: ASEA AB
Inventor: DREYFUS LUDWIG A
IPC: H05B6/08
CPC classification number: H05B6/08
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