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公开(公告)号：US2765221A
公开(公告)日：1956-10-02
申请号：US55227255
申请日：1955-12-12
Applicant: SHELL DEV
Inventor： LUSEBRINK THEODORE R , SAWYER JR WEBSTER M
CPC classification number: F16J15/102 , C10L1/143 , C10L1/2608 , C10L1/2616 , C10L1/2641 , C10L1/265 , C10L1/285
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