-
公开(公告)号：US3487877A
公开(公告)日：1970-01-06
申请号：US3487877D
申请日：1967-12-27
Applicant: OIL BASE
Inventor： METHVEN NORBERT E
IPC: C09K8/516 , E21B33/138
CPC classification number: C09K8/516 , E21B33/138
Search Results
1
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
