-
公开(公告)号：US2961349A
公开(公告)日：1960-11-22
申请号：US67853357
申请日：1957-08-16
Applicant: HOECHST AG
Inventor： HUGO BARTL , HERBERT BESTIAN , HELMUT DIERY , JOHANNES HEYNA , ALFRED RUCKERT
IPC: D06P1/44
CPC classification number: D06P1/44
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
