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
CA686291A
Inventor
B. B. Callick Eric
C. Firmin Jervois
Original Assignee
English Electric Valve Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA686291ApublicationCriticalpatent/CA686291A/en