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 - Lifetime
Application number
AU27786/71A
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.)
Pi) British Railways Board
Original Assignee
Pi) British Railways Board
Filing date
Publication of AU450130B2publicationCriticalpatent/AU450130B2/en
Application filed by Pi) British Railways BoardfiledCriticalPi) British Railways Board