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
CA665072A
Inventor
R. Hawthorne William
C. J. Appleyard Anthony
J. Lincoln Harry
G. Hasler Herbert
Henfrey Jack
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.)
Dracone Developments Ltd
Original Assignee
Dracone Developments Ltd
Publication date
Application grantedgrantedCritical
Publication of CA665072ApublicationCriticalpatent/CA665072A/en