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Priority claimed from DE19863604647external-prioritypatent/DE3604647A1/en
Priority claimed from DE19863604626external-prioritypatent/DE3604626A1/en
Application filed by Siemens Nixdorf Inf SystfiledCriticalSiemens Nixdorf Inf Syst
Priority claimed from EP19870102076external-prioritypatent/EP0232917B1/en
Application grantedgrantedCritical
Publication of ATE93108T1publicationCriticalpatent/ATE93108T1/en