-
公开(公告)号：US2749291A
公开(公告)日：1956-06-05
申请号：US40708654
申请日：1954-01-29
Applicant: SHELL DEV
Inventor： PIEROTTI GINO J , KEELER WILLIAM R , EVANS ROY J , VINCENT ROBERT E
IPC: C01B15/013
CPC classification number: C01B15/013
Search Results
1
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
