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
CA739661A
Inventor
J. Carpenter Michael
A. O. Sutherland Charles
Luckins John
R. Hood Norman
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.)
Research Association for the Paper and Board Printing and Packaging Industries
Original Assignee
Research Association for the Paper and Board Printing and Packaging Industries
Publication date
Application grantedgrantedCritical
Publication of CA739661ApublicationCriticalpatent/CA739661A/en