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Application filed by Porro & PorrofiledCriticalPorro & Porro
Priority to ITMI1982U23059UpriorityCriticalpatent/IT8223059U1/it
Publication of IT8223059V0publicationCriticalpatent/IT8223059V0/it
Priority to EP83109698Aprioritypatent/EP0105466A1/en
Publication of IT8223059U1publicationCriticalpatent/IT8223059U1/it