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Gustav Witt
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2857. Witt, G. Feb. 4. Oars.-A lazy-tongs mechanism carries the oar B in a tube g<7>, and a sliding block d operated from a lever a is connected to the joint k of the lazytongs so that a reciprocation of the oar is obtained. The oar may be turned through a right-angle during the return stroke, either by hand or by striking against a stop. The feathering is assisted by jointing the oar blade.
GB189802857D1898-02-041898-02-04Improved Oars for Boat Propulsion.
ExpiredGB189802857A
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