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
CA12287F
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.)
Randall & Porter Ltd
Original Assignee
Randall & Porter Ltd
Publication date
Priority to CA12287FpriorityCriticalpatent/CA12287S/en
Application grantedgrantedCritical
Publication of CA12287SpublicationCriticalpatent/CA12287S/en