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Description: Patent for "a pump that is simple, durable, and efiicient, which can be manufactured at a comparatively small cost, and which can be readily cleaned and repaired. It consists, preferably, in a double-cylinder pump that is adapted to operate by a direct lift without a valve in the plunger" (lines 8-15).
Date: September 27, 1892
Creator: Tom, Joseph C.
Partner: UNT Libraries Government Documents Department