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
CA804738A
Inventor
H. Chapman Thomas
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.)
Gunsons Sortex Ltd
Original Assignee
Gunsons Sortex Ltd
Publication date
Application grantedgrantedCritical
Publication of CA804738ApublicationCriticalpatent/CA804738A/en