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
CA31333F
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.)
Edward A Roch
Original Assignee
Edward A Roch
Publication date
Priority to CA31333FpriorityCriticalpatent/CA31333S/en
Application grantedgrantedCritical
Publication of CA31333SpublicationCriticalpatent/CA31333S/en