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Priority claimed from IT24843/78Aexternal-prioritypatent/IT1096778B/en
Priority claimed from IT3088478Aexternal-prioritypatent/IT1160353B/en
Priority claimed from IT2263979Aexternal-prioritypatent/IT1166823B/en
Priority claimed from YU1485/79Aexternal-prioritypatent/YU40370B/en
Application filed by Snam ProgettifiledCriticalSnam Progetti
Publication of YU261282ApublicationCriticalpatent/YU261282A/en