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
CA614670A
Inventor
John S. MacKelvie
Original Assignee
Canadian General Electric Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA614670ApublicationCriticalpatent/CA614670A/en