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
CA886404A
Inventor
D. Rochette 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.)
TCF of Canada Ltd
Original Assignee
TCF of Canada Ltd
Publication date
Application grantedgrantedCritical
Publication of CA886404ApublicationCriticalpatent/CA886404A/en