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公开(公告)号:US3487261A
公开(公告)日:1969-12-30
申请号:US69513367
申请日:1968-01-02
Applicant: ASEA AB
Inventor: BOKSJO INGVAR , OLSSON KARL-ERIK , SVEDBERG PER
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公开(公告)号:US3532901A
公开(公告)日:1970-10-06
申请号:US3532901D
申请日:1967-06-12
Applicant: ASEA AB
Inventor: HYLTEN-CAVALLIUS NILS , BOKSJO CARL INGVAR , OLSSON KARL-ERIK , ALGBRANT ARNE
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