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Valve
Patent for an automatic valve for use upon hydraulic or suction dredges to prevent sore material such as clay, sand and mud from preventing the efficient use of the dredge sure to the closing of heavy material in the mouth of the dredge. The valve is intended to supply water to flush out the mouth of the dredge.
Date:
June 12, 1917
Creator:
Miller, Henry L.
System:
The Portal to Texas History