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
CA685760A
Inventor
W. Waldron 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.)
Extruded Louver Corp
Original Assignee
Extruded Louver Corp
Publication date
Application grantedgrantedCritical
Publication of CA685760ApublicationCriticalpatent/CA685760A/en