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公开(公告)号:US2762966A
公开(公告)日:1956-09-11
申请号:US23365051
申请日:1951-06-26
Applicant: ASEA AB
Inventor: LENNART BORG
IPC: H03F9/04
CPC classification number: H03F9/04
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2.
公开(公告)号:US2730670A
公开(公告)日:1956-01-10
申请号:US19445350
申请日:1950-11-07
Applicant: ASEA AB
Inventor: LENNART BORG
IPC: H02M5/00
CPC classification number: H02M5/00
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公开(公告)号:US2712635A
公开(公告)日:1955-07-05
申请号:US22582651
申请日:1951-05-11
Applicant: ASEA AB
Inventor: LENNART BORG
IPC: G01R19/20
CPC classification number: G01R19/20
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