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
CA876218A
Inventor
E. Wakefield Norman
J. Alexander Stuart
F. Morrish James
Beck William
S. Groves Raymond
J. Harvey Michael
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.)
WATES Ltd
Original Assignee
WATES Ltd
Publication date
Application grantedgrantedCritical
Publication of CA876218ApublicationCriticalpatent/CA876218A/en