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
CA869067A
Inventor
Kolbeck Winfried
Bayerlein Friedrich
D. Kessler Horst
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.)
Diamalt AG
Original Assignee
Diamalt AG
Publication date
Application grantedgrantedCritical
Publication of CA869067ApublicationCriticalpatent/CA869067A/en