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Map of Callahan Co. [Texas].

Description: Map shows land tracts, landowners, towns, roads, and land patents; portions of adjacent counties where property boundaries extend beyond county limits. Relief shown by hachures. Scale [1:133,334].
Date: 1880
Creator: Texas. General Land Office.
Partner: University of Texas at Arlington Library

Vehicle Wheel.

Description: Patent for a new and improved vehicle wheel. This design features "the construction and combination of parts whereby the spokes may be adjusted radially outward, and also forced tightly around the axle-box, to compensate for shrinkage" (lines 11-15).
Date: October 19, 1880
Creator: French, Stephen H. & Maltby, William J.
Partner: UNT Libraries Government Documents Department

Washing-Machine.

Description: Patent for washing-machines that "employ a circular corrugated or fluted bed with a conical roller revolving about a central post" (lines 12-14).
Date: February 10, 1880
Creator: Austin, Thomas J.
Partner: UNT Libraries Government Documents Department
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