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Windmill Attachment.

Description: Patent for an attachment for hand or windmill pumps in order to reduce stress of upward and load moving strokes, including instructions and illustrations.
Date: December 23, 1919
Creator: Bertrand, Rabb A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

System of Subirrigation.

Description: Patent for the improvement of a subirrigation system, which allows the prevention of the pipes being choked by pipes through the use of coiled pipes.
Date: January 23, 1912
Creator: Robinson, William M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Elevated Irrigation System

Description: Patent for an elevated irrigation system that relates to a useful system for supplying and distributing water, for the irrigation of large tracts of land.
Date: September 23, 1913
Creator: Anderson, Young Rhea
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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