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
CA667407A
Inventor
Breuers Wilhelm
Kuth Gerhard
Bock Ernst-Gunther
Tilk Woldemar
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.)
Bunawerke Huls GmbH
Original Assignee
Bunawerke Huls GmbH
Publication date
Application grantedgrantedCritical
Publication of CA667407ApublicationCriticalpatent/CA667407A/en