Hydraulic Pumps and Motors,Vane Pumps and Motors,Piston Pumps and Motors,Radial Piston Motors ,Valves and Manifolds
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Denison Hydraulics Inc., originally known as The Cook Motor Co., was founded in 1900 in Delaware, Ohio, as a manufacturer of heavy duty industrial gasoline engines. The main problem was that they were big, heavy, and only single cylinder. For example, a typical 50hp engine weighed 3 tons.