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
CA914564A
Inventor
A. Bell Donald
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.)
SRP New Thames Ltd
Original Assignee
SRP New Thames Ltd
Publication date
Application grantedgrantedCritical
Publication of CA914564ApublicationCriticalpatent/CA914564A/en