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
CA862972A
Inventor
Oetiker Hans
Original Assignee
Hans Oetiker AG Maschinen und Apparatefabrik
Publication date
Application grantedgrantedCritical
Publication of CA862972ApublicationCriticalpatent/CA862972A/en