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
CA27229F
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.)
Walker & Son Ltd B
Original Assignee
Walker & Son Ltd B
Publication date
Priority to CA27229FpriorityCriticalpatent/CA27229S/en
Application grantedgrantedCritical
Publication of CA27229SpublicationCriticalpatent/CA27229S/en