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
CA601593A
Inventor
Wurmbock Oscar
Wurmbock Egon
Niemann Rolf
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.)
DR WURMBOCK GmbH
Original Assignee
DR WURMBOCK GmbH
Publication date
Application grantedgrantedCritical
Publication of CA601593ApublicationCriticalpatent/CA601593A/en