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公开(公告)号：US3211169A
公开(公告)日：1965-10-12
申请号：US31313563
申请日：1963-10-01
Applicant: WEBB JAMES E , PETERSON JR NORMAN E
Inventor： WEBB JAMES E , PETERSON JR NORMAN E
IPC: F16K51/02
CPC classification number: F16K51/02 , Y10T137/6579 , Y10T137/6606
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