Saved successfully
Save failed
Saved Successfully
Save Failed
公开(公告)号:DE3101720A1
公开(公告)日:1982-07-29
申请号:DE3101720
申请日:1981-01-21
Applicant: DEGUSSA
Inventor: KOTH DETLEV DR
IPC: B01D53/68 , C01B33/16 , C01B33/18