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公开(公告)号：US2427636A
公开(公告)日：1947-09-16
申请号：US52484544
申请日：1944-03-01
Applicant: SHELL DEV
Inventor： VAUGHAN WILLIAM E , KENNEDY HARTWELL C
IPC: F16J15/22
CPC classification number: F16J15/22
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