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
CA658148A
Inventor
F. Wise Harold
H. Filling James
S. Nelson Don
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.)
Courtaulds Canada Ltd
Original Assignee
Courtaulds Canada Ltd
Publication date
Application grantedgrantedCritical
Publication of CA658148ApublicationCriticalpatent/CA658148A/en