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Well Screen

Description: Patent for well screen to prevent entrance. Illustrations included.
Date: October 18, 1904
Creator: Stancliff, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grading-Machine.

Description: Patent for a grading machine for use in building dikes and levees, which can run over obstacles without harming the machine's work.
Date: October 29, 1907
Creator: Barnett, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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