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
CA633227A
Inventor
Maharick Matt
M. Chalmers William
H. Mollis Margaret
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.)
Youngstown Steel Car Corp
Original Assignee
Youngstown Steel Car Corp
Publication date
Application grantedgrantedCritical
Publication of CA633227ApublicationCriticalpatent/CA633227A/en