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Priority to ES0330945ApriorityCriticalpatent/ES330945A1/en
Publication of ES330945A1publicationCriticalpatent/ES330945A1/en
A propulsion system for water sliders and small boats, which is characterized by the fact that the propulsion is done through a spiral endless whose ends are supported on bearings, having at one of these ends a conical gear to connect the force coming from an engine or a set of pedals, provided that the arrangement of the auger is made in the center of the boat, horizontally and parallel to the longitudinal axis of the same, and calculated its position so that with the load provided the waterline covers the spiral. (Machine-translation by Google Translate, not legally binding)
ES0330945A1966-09-061966-09-06A propulsion system for aquatic slides and small boats. (Machine-translation by Google Translate, not legally binding)
ExpiredES330945A1
(en)