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
CA52792F
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Publication date
Priority to CA52792FpriorityCriticalpatent/CA52792S/en
Application grantedgrantedCritical
Publication of CA52792SpublicationCriticalpatent/CA52792S/en