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公开(公告)号:US3050703A
公开(公告)日:1962-08-21
申请号:US68076357
申请日:1957-08-28
Applicant: CONTROLS CO OF AMERICA
Inventor: DUESCHER JOHN H
IPC: H01F7/08
CPC classification number: H01F7/08
公开(公告)号:US3050703A
公开(公告)日:1962-08-21
申请号:US68076357
申请日:1957-08-28
Applicant: CONTROLS CO OF AMERICA
Inventor: DUESCHER JOHN H
IPC: H01F7/08
CPC classification number: H01F7/08