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
CA596264A
Inventor
Alexander Easson
John Magson
Original Assignee
Computing Devices of Canada Ltd
Publication date
Application grantedgrantedCritical
Publication of CA596264ApublicationCriticalpatent/CA596264A/en