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
CA770353A
Inventor
William C. Smith
Original Assignee
Rader Pneumatics and Engineering Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA770353ApublicationCriticalpatent/CA770353A/en