Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA657773A
Inventor
K. Wieger Peter
Szczepanek Alfred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Fabrik Hoesch KG
Original Assignee
Chemische Fabrik Hoesch KG
Publication date
Application grantedgrantedCritical
Publication of CA657773ApublicationCriticalpatent/CA657773A/en