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
CA11807F
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.)
Alfred E Colby
Original Assignee
Alfred E Colby
Publication date
Priority to CA11807FpriorityCriticalpatent/CA11807S/en
Application grantedgrantedCritical
Publication of CA11807SpublicationCriticalpatent/CA11807S/en