Equalizer for Pump Rods
Description:
Patent for an equalizer for pump rods. This invention is designed to "assist in elevating the column of water in a pump, is designed to sustain the pump rod in its fixed position" (line 11-14). Illustration included.
Date:
June 13, 1911
Creator:
Johnson, Robert H.
Item Type:
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Partner:
UNT Libraries Government Documents Department