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
CA643748A
Inventor
T. Buttery Kenneth
W. Walton Charles
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.)
KVP Sutherland Paper Co
Original Assignee
Kenneth T Buttery
KVP Sutherland Paper Co
Publication date
Application grantedgrantedCritical
Publication of CA643748ApublicationCriticalpatent/CA643748A/en