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
CA890116A
Inventor
L. Perkins Robert
G. Keel Beat
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.)
Control Data Corp
Original Assignee
Control Data Corp
Publication date
Application grantedgrantedCritical
Publication of CA890116ApublicationCriticalpatent/CA890116A/en