HYDRECO

Machine parts, namely, pumps for delivering fluid under pressure, fluid pressure motors, valves for controlling flow of fluid, and unitary fluid pressure power systems, consisting primarily of a reservoir and one or more of the above named devices, gear motors, hydraulic pumps, hydraulic valves, and hydraulic operated mechanisms and fittings, adapted as accessories for more comprehensive machines in the nature of tractor hoists hydraulically operated, lifting and pulling jacks, tractor implement operating machinery

[ Steam valves and stems therefor ]