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
CA613661A
Inventor
Ii Davis R. Dewey
G. Trump John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
High Voltage Engineering Corp
Original Assignee
High Voltage Engineering Corp
Publication date
Application grantedgrantedCritical
Publication of CA613661ApublicationCriticalpatent/CA613661A/en