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Improvement in Traction-Engines.

Description: Patent for a traction engine "for running on common roads and rails, and to be used for drawing plows, and as a motive power generally" (lines 8-10) including illustrations.
Date: July 31, 1877
Creator: Walker, Leander
Partner: UNT Libraries Government Documents Department

Improvement in Brick-Machines.

Description: Patent for an improvement in brick-machines by which a new combination of construction materials is contrived.
Date: July 31, 1876
Creator: Michel, Ferdinand
Partner: UNT Libraries Government Documents Department
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