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
CA681207A
Inventor
Gruendel George
Gill Joseph
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
George Gruendel
Hagan Chemicals and Controls Inc
Publication date
Application grantedgrantedCritical
Publication of CA681207ApublicationCriticalpatent/CA681207A/en