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
CA794174A
Inventor
E. Stilwell Jack
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.)
AB Chance Co
Original Assignee
AB Chance Co
Publication date
Application grantedgrantedCritical
Publication of CA794174ApublicationCriticalpatent/CA794174A/en