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
CA720059A
Inventor
Warner Edgar
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.)
Champion Paper and Fibre Co
Original Assignee
Champion Paper and Fibre Co
Publication date
Application grantedgrantedCritical
Publication of CA720059ApublicationCriticalpatent/CA720059A/en