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
CA711911A
Inventor
Pechthold Heinz
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.)
Bonatex Ets
Original Assignee
Bonatex Ets
Publication date
Application grantedgrantedCritical
Publication of CA711911ApublicationCriticalpatent/CA711911A/en