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Priority to ES1978239111UpriorityCriticalpatent/ES239111Y/en
Publication of ES239111UpublicationCriticalpatent/ES239111U/en
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Publication of ES239111YpublicationCriticalpatent/ES239111Y/en
Improved drive device for rowing boats, of the type comprising two tilting arms on the sides of the boat, each of which incorporate blades folding by articulation; characterized essentially in that said arms are fixed to an axis, which arranged transversely with respect to the boat, is articulated in clamps provided on the sides of the boat; with the particularity that said axis is affected in its central section by an elbow actuatable manually or with the feet. (Machine-translation by Google Translate, not legally binding)
ES1978239111U1978-10-301978-10-30
PERFECTED DRIVE DEVICE FOR ROWING BOATS
ExpiredES239111Y
(en)
A system of generation of energy by conversion from the movements of the waves of the sea. (Machine-translation by Google Translate, not legally binding)