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公开(公告)号：US2819920A
公开(公告)日：1958-01-14
申请号：US49291255
申请日：1955-03-08
Applicant: THOMPSON PROD INC
Inventor： SNYDER JACOB R , TAYLOR JOHN E
IPC: F16J15/08
CPC classification number: F16J15/0893
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