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
CA891090A
Inventor
R. Henderson Harold
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.)
Arcair Co
Original Assignee
Arcair Co
Publication date
Application grantedgrantedCritical
Publication of CA891090ApublicationCriticalpatent/CA891090A/en