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
CA758499A
Inventor
J. Dearth Raymond
Original Assignee
Amsted Industries Inc
Publication date
Application grantedgrantedCritical
Publication of CA758499ApublicationCriticalpatent/CA758499A/en