-
公开(公告)号：DD152262A3
公开(公告)日：1981-11-25
申请号：DD21954080
申请日：1980-03-06
Applicant: STROJOPRAV OPP
Inventor： MICHEK VACLAV
IPC: C02F1/42 , B01J41/04 , B01J41/05 , C02F101/16 , C02F103/04
Search Results
1
records
(took 0.019 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
