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
CA675456A
Inventor
Richard N. Dobson
Richard N. Bexon
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.)
Dominion Foundries and Steel Ltd
Original Assignee
Dominion Foundries and Steel Ltd
Publication date
Application grantedgrantedCritical
Publication of CA675456ApublicationCriticalpatent/CA675456A/en