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
CA907042A
Inventor
N. Haszeldine Robert
E. Tipping Anthony
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.)
Minister of Aviation
Original Assignee
Minister of Aviation
Publication date
Application grantedgrantedCritical
Publication of CA907042ApublicationCriticalpatent/CA907042A/en