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
CA805245A
Inventor
G. Bryer 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.)
RA Stephen and Co Ltd
Original Assignee
RA Stephen and Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA805245ApublicationCriticalpatent/CA805245A/en