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Application filed by Giovanni Battista CalabrigofiledCriticalGiovanni Battista Calabrigo
Priority to IT82520/85ApriorityCriticalpatent/IT1187419B/en
Publication of IT8582520A0publicationCriticalpatent/IT8582520A0/en
Application grantedgrantedCritical
Publication of IT1187419BpublicationCriticalpatent/IT1187419B/en