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
CA617620A
Inventor
Ronning Martin
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.)
Minneapolis Moline Co
Original Assignee
Minneapolis Moline Co
Publication date
Application grantedgrantedCritical
Publication of CA617620ApublicationCriticalpatent/CA617620A/en