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
CA824002A
Inventor
R. Murchison John
C. Darnall John
M. Brassell Clarence
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.)
Development and Control Ltd SA
Original Assignee
Development and Control Ltd SA
Publication date
Application grantedgrantedCritical
Publication of CA824002ApublicationCriticalpatent/CA824002A/en