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
CA796404A
Inventor
Cooper Brian
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.)
Firth Cleveland Ltd
Original Assignee
Firth Cleveland Ltd
Publication date
Application grantedgrantedCritical
Publication of CA796404ApublicationCriticalpatent/CA796404A/en