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
CA831833A
Inventor
A. Friz Helmut
Dettelbach Alfred
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.)
Adolf Friz GmbH
Original Assignee
Adolf Friz GmbH
Publication date
Application grantedgrantedCritical
Publication of CA831833ApublicationCriticalpatent/CA831833A/en