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
CA657245A
Inventor
E. Straight Paul
E. Harkins Robert
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.)
Hagan Chemicals and Controls Inc
Original Assignee
Paul E Straight
Robert E Harkins
Hagan Chemicals and Controls Inc
Publication date
Application grantedgrantedCritical
Publication of CA657245ApublicationCriticalpatent/CA657245A/en