-
公开(公告)号：US1839159A
公开(公告)日：1931-12-29
申请号：US49444430
申请日：1930-11-08
Applicant: NEWBERN ROBERT L
Inventor： NEWBERN ROBERT L
IPC: C10G71/00
CPC classification number: C10M1/08 , C10M2201/00 , C10M2201/041 , C10M2201/042 , C10M2201/043 , C10M2201/05 , C10M2201/061 , C10M2201/062 , C10M2201/16 , C10M2201/18 , C10N2240/14
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
