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
CA738559A
Inventor
Spiess Hans
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.)
Maschinenfabrik Oerlikon AG
Original Assignee
Maschinenfabrik Oerlikon AG
Publication date
Application grantedgrantedCritical
Publication of CA738559ApublicationCriticalpatent/CA738559A/en