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Application filed by Giovanni Battista CalabrigofiledCriticalGiovanni Battista Calabrigo
Priority to IT8682522ApriorityCriticalpatent/IT1227284B/en
Publication of IT8682522A0publicationCriticalpatent/IT8682522A0/en
Application grantedgrantedCritical
Publication of IT1227284BpublicationCriticalpatent/IT1227284B/en