-
公开(公告)号：US2560368A
公开(公告)日：1951-07-10
申请号：US8713649
申请日：1949-04-12
Applicant: SHELL DEV
Inventor： RICHARDS LEONARD J , WILLIAMS KEITH R
IPC: C10L1/12
CPC classification number: C10L1/12 , C10L1/1225 , C10L1/1233
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
