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Application filed by Martini Silla, Calmonte RenzofiledCriticalMartini Silla
Priority to IT47677/82ApriorityCriticalpatent/IT1154268B/it
Publication of IT8247677A0publicationCriticalpatent/IT8247677A0/it
Application grantedgrantedCritical
Publication of IT1154268BpublicationCriticalpatent/IT1154268B/it
IT47677/82A1982-01-291982-01-29Compasso a punta centrale di appoggio e punta scrivente sempre verticali al variare dell'angolo di apertura
IT1154268B
(it)