Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Francesco FelisatifiledCriticalFrancesco Felisati
Priority to IT19073/85ApriorityCriticalpatent/IT1183107B/it
Publication of IT8519073A0publicationCriticalpatent/IT8519073A0/it
Application grantedgrantedCritical
Publication of IT1183107BpublicationCriticalpatent/IT1183107B/it
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