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
CA630897A
Inventor
Haughton Ernest
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.)
LORD MAYOR ALDERMEN AND CITIZENS OF CITY OF LIVERPOOL
Original Assignee
LORD MAYOR ALDERMEN AND CITIZENS OF CITY OF LIVERPOOL
Publication date
Application grantedgrantedCritical
Publication of CA630897ApublicationCriticalpatent/CA630897A/en