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Priority claimed from GB878725111Aexternal-prioritypatent/GB8725111D0/en
Priority claimed from IN49/DEL/88Aexternal-prioritypatent/IN171349B/en
Application filed by IbmfiledCriticalIbm
Priority to IN1193DE1990priorityCriticalpatent/IN178180B/en
Publication of IN178180BpublicationCriticalpatent/IN178180B/en