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
CA713230A
Inventor
Stutz Hansruedi
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.)
AG Gebr LOEPFE
Original Assignee
AG Gebr LOEPFE
Publication date
Application grantedgrantedCritical
Publication of CA713230ApublicationCriticalpatent/CA713230A/en