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
CA916658A
Inventor
Kodra Esper
Original Assignee
Joy Manufacturing Co
Publication date
Application grantedgrantedCritical
Publication of CA916658ApublicationCriticalpatent/CA916658A/en