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
CA753037A
Inventor
W. Bartley William
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.)
McKay Machine Co
Original Assignee
William W Bartley
McKay Machine Co
Publication date
Application grantedgrantedCritical
Publication of CA753037ApublicationCriticalpatent/CA753037A/en