-
公开(公告)号：US2502949A
公开(公告)日：1950-04-04
申请号：US62063245
申请日：1945-10-05
Applicant: STANDARD OIL DEV CO
Inventor： HOWLETT RICHARD M , NEWBERG RAYMOND G
IPC: C08K3/08
Search Results
1
records
(took 0.015 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
