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
CA675924A
Inventor
Buchler Karl
Kaess Franz
Lienhard Klaus
Strassberger Lothar
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.)
Evonik Operations GmbH
Original Assignee
Karl Buchler
SKW Trostberg AG
Publication date
Application grantedgrantedCritical
Publication of CA675924ApublicationCriticalpatent/CA675924A/en