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公开(公告)号：US1150445A
公开(公告)日：1915-08-17
申请号：US1913806112
申请日：1913-12-10
Applicant: JOHN A BEACH , MATHESON ROBERT
Inventor： MATHESON ROBERT
CPC classification number: F03B11/08 , B01D21/0012 , E03F5/14 , Y02E10/226
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