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公开(公告)号：US2017824A
公开(公告)日：1935-10-15
申请号：US46859230
申请日：1930-07-17
Applicant: STANDARD OIL CO INDIANA
Inventor： WADE ARTHUR C
IPC: F16K15/04
CPC classification number: F16K15/04 , Y10T137/7911
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