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Priority claimed from IT20828/88Aexternal-prioritypatent/IT1217759B/en
Priority claimed from IT2115989Uexternal-prioritypatent/IT216621Z2/en
Application filed by Lucio GrossifiledCriticalLucio Grossi
Priority claimed from EP19890201375external-prioritypatent/EP0344859B1/en
Application grantedgrantedCritical
Publication of ATE92733T1publicationCriticalpatent/ATE92733T1/en