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
CA792988A
Inventor
M. Blaiklock William
L. Allen Donald
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.)
General Steel Wares Ltd
Original Assignee
General Steel Wares Ltd
Publication date
Application grantedgrantedCritical
Publication of CA792988ApublicationCriticalpatent/CA792988A/en