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
CA808522A
Inventor
Wahlmann Ernst
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.)
P A RENTROP GmbH
Original Assignee
P A RENTROP GmbH
Publication date
Application grantedgrantedCritical
Publication of CA808522ApublicationCriticalpatent/CA808522A/en