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
CA886405A
Inventor
R. Petyt Colin
E. Phillips Hugh
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.)
Avery Hardoll Ltd
Beck and Co Meters Ltd
Original Assignee
Avery Hardoll Ltd
Beck and Co Meters Ltd
Publication date
Application grantedgrantedCritical
Publication of CA886405ApublicationCriticalpatent/CA886405A/en