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Priority to IT95PD000033ApriorityCriticalpatent/IT1281846B1/en
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Publication of ITPD950033A1publicationCriticalpatent/ITPD950033A1/en
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Publication of IT1281846B1publicationCriticalpatent/IT1281846B1/en
The self-supporting pulling sail, with a shape deriving from an ogival surface, without rigid supporting members, is designed to pull boats of various kinds and to pull floating bodies of various kinds. The sail is only controlled by moving and rotating the frame which gathers the tie ropes, either manually or by means of motorised or unmotorised servomechanisms. <IMAGE>