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
CA630615A
Inventor
E. Grove James
W. Delano 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.)
Hamilton Tool Co
Original Assignee
Hamilton Tool Co
Publication date
Application grantedgrantedCritical
Publication of CA630615ApublicationCriticalpatent/CA630615A/en