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
CA679514A
Inventor
B. Mcandrew John
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.)
IRA T SWARTWOOD
Original Assignee
IRA T SWARTWOOD
Publication date
Application grantedgrantedCritical
Publication of CA679514ApublicationCriticalpatent/CA679514A/en