-
公开(公告)号：US2620047A
公开(公告)日：1952-12-02
申请号：US18376850
申请日：1950-09-08
Applicant: STANDARD OIL DEV CO
Inventor： CAHN ROBERT P
IPC: B01D53/12
CPC classification number: B01D53/12
-
公开(公告)号：US2666500A
公开(公告)日：1954-01-19
申请号：US19029250
申请日：1950-10-16
Applicant: STANDARD OIL DEV CO
Inventor： CAHN ROBERT P , ETHERINGTON LEWIS D
IPC: B01D53/02
CPC classification number: B01D53/02
-
Search Results
2
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
