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Priority claimed from FR7620986Aexternal-prioritypatent/FR2357836A1/fr
Priority claimed from FR7630248Aexternal-prioritypatent/FR2367256A2/fr
Priority claimed from IN1041/CAL/77Aexternal-prioritypatent/IN148743B/en
Application filed by Virgil StarkfiledCriticalVirgil Stark
Priority to IN1427/CAL/80ApriorityCriticalpatent/IN154165B/en
Publication of IN154165BpublicationCriticalpatent/IN154165B/en