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
CA614920A
Inventor
S. Peterson Edward
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application grantedgrantedCritical
Publication of CA614920ApublicationCriticalpatent/CA614920A/en