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
CA789333A
Inventor
E. Gallagher John
Mcculloch Bryson
N. Crider Orin
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.)
Slick Industrial Co
Original Assignee
Slick Industrial Co
Publication date
Application grantedgrantedCritical
Publication of CA789333ApublicationCriticalpatent/CA789333A/en