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公开(公告)号：US2808782A
公开(公告)日：1957-10-08
申请号：US37750653
申请日：1953-08-31
Applicant: GALIGHER COMPANY
Inventor： THOMPSON JOHN W , WILSON ROBERT A , HOLLAND ROBERT B
IPC: F04D7/02
CPC classification number: F04D7/02 , Y10S415/901
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