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
CA682791A
Inventor
Schulz-Methke Hans-Dieter
Simon Heinrich
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.)
Espera Werke GmbH
Original Assignee
Espera Werke GmbH
Publication date
Application grantedgrantedCritical
Publication of CA682791ApublicationCriticalpatent/CA682791A/en