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Application filed by Mitsubishi Pencil CofiledCriticalMitsubishi Pencil Co
Priority to ITMI920028ApriorityCriticalpatent/IT1258753B/en
Publication of ITMI920028A0publicationCriticalpatent/ITMI920028A0/en
Publication of ITMI920028A1publicationCriticalpatent/ITMI920028A1/en
Application grantedgrantedCritical
Publication of IT1258753BpublicationCriticalpatent/IT1258753B/en