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
CA756697A
Inventor
K. Sugden Frank
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.)
WALL PAPER MANUFACTURERS Ltd
Original Assignee
WALL PAPER MANUFACTURERS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA756697ApublicationCriticalpatent/CA756697A/en