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
CA830032A
Inventor
Lamparter Helmut
I. Schonbuch Weil
Bergmann Kurt
Spruth Wilhelm
Knauft Guenter
Rothauser Ernst
Original Assignee
International Business Machines Corp
Publication date
Application grantedgrantedCritical
Publication of CA830032ApublicationCriticalpatent/CA830032A/en