-
公开(公告)号：US2630457A
公开(公告)日：1953-03-03
申请号：US7060849
申请日：1949-01-12
Applicant: BAYER AG
CPC classification number: A01N25/30 , B01F17/0028 , Y10S514/941 , Y10S516/01
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
