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
CA785595A
Inventor
Austin James
D. Ellis John
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.)
Nordac Ltd
Original Assignee
Nordac Ltd
Publication date
Application grantedgrantedCritical
Publication of CA785595ApublicationCriticalpatent/CA785595A/en