-
公开(公告)号：US1881282A
公开(公告)日：1932-10-04
申请号：US30777528
申请日：1928-09-22
Applicant: DU PONT
Inventor： LAWSON WALTER E , SANDBORN LLOYD T
IPC: C08F12/08
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
