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
CA753771A
Inventor
E. Ward Curtis
K. Macdonald Richard
E. Carroll Lister
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
Publication date
Application grantedgrantedCritical
Publication of CA753771ApublicationCriticalpatent/CA753771A/en