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
CA809938A
Inventor
W. Lenk James
H. Burnett Arthur
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.)
WALBERT EQUIPMENT CO
Original Assignee
WALBERT EQUIPMENT CO
Publication date
Application grantedgrantedCritical
Publication of CA809938ApublicationCriticalpatent/CA809938A/en