-
公开(公告)号：US2703319A
公开(公告)日：1955-03-01
申请号：US25183051
申请日：1951-10-17
Applicant: HOECHST AG
Inventor： ERNST FISCHER
IPC: C09B29/20
CPC classification number: C09B29/20
Search Results
11
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
