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公开(公告)号：US2489871A
公开(公告)日：1949-11-29
申请号：US5159648
申请日：1948-09-28
Applicant: GEN ELECTRIC
Inventor： ARTHUR EDWARDS MARTIN , LEWIS CARL B
IPC: H02P9/00
CPC classification number: H02P9/00
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公开(公告)号：US2502119A
公开(公告)日：1950-03-28
申请号：US79454647
申请日：1947-12-30
Applicant: GEN ELECTRIC
Inventor： BAUERSFELD CHARLES F , ARTHUR EDWARDS MARTIN
IPC: H02P5/68
CPC classification number: H02P5/68
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