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
CA665387A
Inventor
Joseph Vesak
Original Assignee
Crown Zellerbach Canada Ltd
Publication date
Application grantedgrantedCritical
Publication of CA665387ApublicationCriticalpatent/CA665387A/en