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Application filed by Del Gres Sala S P A SocfiledCriticalDel Gres Sala S P A Soc
Priority to IT22705/87ApriorityCriticalpatent/IT1223441B/en
Publication of IT8722705A0publicationCriticalpatent/IT8722705A0/en
Application grantedgrantedCritical
Publication of IT1223441BpublicationCriticalpatent/IT1223441B/en