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Application filed by Giorgio FerrarinifiledCriticalGiorgio Ferrarini
Priority to ITMI910792priorityCriticalpatent/ITMI910792U1/en
Publication of ITMI910792V0publicationCriticalpatent/ITMI910792V0/en
Publication of ITMI910792U1publicationCriticalpatent/ITMI910792U1/en
System for keeping the boat's mast in longitudinal plane of symmetry of such board while lowering down such mast, especially for use on sail yachts