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
CA686599A
Inventor
W. Schwing Friedrich
Original Assignee
Friedrich Wilhelm Schwing GmbH
Publication date
Application grantedgrantedCritical
Publication of CA686599ApublicationCriticalpatent/CA686599A/en