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
CA901676A
Inventor
M. Cotton 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.)
Plessey BTR Ltd
Original Assignee
Plessey BTR Ltd
Publication date
Application grantedgrantedCritical
Publication of CA901676ApublicationCriticalpatent/CA901676A/en