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
CA772147A
Inventor
W. Conwell John
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.)
Sunray Dx Oil Co
Original Assignee
Sunray Dx Oil Co
Publication date
Application grantedgrantedCritical
Publication of CA772147ApublicationCriticalpatent/CA772147A/en