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
CA873560A
Inventor
J. O. Cole Edric
C. Mills Walter
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.)
CMC Electronics Inc
Original Assignee
Edric J O Cole
Canadian Marconi Co
Publication date
Application grantedgrantedCritical
Publication of CA873560ApublicationCriticalpatent/CA873560A/en