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
CA611469A
Inventor
Beck Walter
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.)
Montgomery Elevator Co
Original Assignee
Montgomery Elevator Co
Publication date
Application grantedgrantedCritical
Publication of CA611469ApublicationCriticalpatent/CA611469A/en