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
CA595924A
Inventor
Boyer Wilhelm
Hufnagl Walter
Ritter Sepp
Eisenburger Kuno
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
Publication date
Application grantedgrantedCritical
Publication of CA595924ApublicationCriticalpatent/CA595924A/en