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
CA620659A
Inventor
T. Hammond Eric
L. Cole Stanley
H. Watson William
Lane Robert
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.)
HINDLEY BROTHERS Ltd
Original Assignee
HINDLEY BROTHERS Ltd
Publication date
Application grantedgrantedCritical
Publication of CA620659ApublicationCriticalpatent/CA620659A/en