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
CA594048A
Inventor
Grosschopf Herbert
Klein Heinrich
Steingrubner Arthur
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.)
Wahl Brothers
Original Assignee
Wahl Brothers
Publication date
Application grantedgrantedCritical
Publication of CA594048ApublicationCriticalpatent/CA594048A/en