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
CA678463A
Inventor
T. Hall Eric
R. Leonard William
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Publication date
Application grantedgrantedCritical
Publication of CA678463ApublicationCriticalpatent/CA678463A/en