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公开(公告)号:US2504711A
公开(公告)日:1950-04-18
申请号:US72936847
申请日:1947-02-18
Applicant: ASEA AB
Inventor: SVEN LUNDAHL , CARL LUNDAHL
IPC: B23K9/12
CPC classification number: B23K9/121
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公开(公告)号:US2914654A
公开(公告)日:1959-11-24
申请号:US68032957
申请日:1957-08-26
Applicant: ASEA AB
Inventor: CARL LUNDAHL , SVEN LUNDAHL
IPC: B23K9/12
CPC classification number: B23K9/121 , Y10T29/49924 , Y10T29/49927
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