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
CA 16873
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.)
ARTHUR LOUIS HIRST
Original Assignee
Individual
Publication date
Priority to CA 16873priorityCriticalpatent/CA16873S/en
Application grantedgrantedCritical
Publication of CA16873SpublicationCriticalpatent/CA16873S/en