-
1.发明授权
公开(公告)号：US2925330A
公开(公告)日：1960-02-16
申请号：US49215255
申请日：1955-03-04
Applicant: STAMICARBON
Inventor： KNOPS JAN J A
IPC: B01J8/00
CPC classification number: B01J8/003
Search Results
1
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
