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Publication date
Priority claimed from GB848428660Aexternal-prioritypatent/GB8428660D0/en
Priority claimed from GB858509875Aexternal-prioritypatent/GB8509875D0/en
Priority claimed from IN807/CAL/86Aexternal-prioritypatent/IN165861B/en
Application filed by Shields Instr LtdfiledCriticalShields Instr Ltd
Priority to IN928/CAL/88ApriorityCriticalpatent/IN168969B/en
Publication of IN168969BpublicationCriticalpatent/IN168969B/en