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
CA895770A
Inventor
W. Trubey Philip
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.)
Canada Minister of Industry
Original Assignee
Canada Minister of Industry
Publication date
Application grantedgrantedCritical
Publication of CA895770ApublicationCriticalpatent/CA895770A/en