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
CA896121A
Inventor
Helgeland Walter
Original Assignee
Sprague Electric Co
Publication date
Application grantedgrantedCritical
Publication of CA896121ApublicationCriticalpatent/CA896121A/en