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公开(公告)号：US2767000A
公开(公告)日：1956-10-16
申请号：US27937152
申请日：1952-03-29
Applicant: CONTROLS CO OF AMERICA
Inventor： SMITH CHARLES S
IPC: F04D25/10
CPC classification number: F04D25/105 , Y10T403/39 , Y10T403/4662
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