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
CA786621A
Inventor
Franklin R. Amthor, Jr.
M. Katzfey James
E. Kanitz Roy
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.)
Hamilton Manufacturing Co
Original Assignee
James M Katzfey
Hamilton Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA786621ApublicationCriticalpatent/CA786621A/en