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
CA691403A
Inventor
F. Bull Leslie
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.)
TERSONS Ltd
Original Assignee
TERSONS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA691403ApublicationCriticalpatent/CA691403A/en