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Improvement In Circular-Saw Mills.

Description: Patent for an improved Circular Sawmill with an " improved adjustable feed mechanism" (pg 1). Illustration Included.
Date: October 22, 1872
Creator: Jones, John B.
Partner: UNT Libraries Government Documents Department

Improvement in railroad switches

Description: Patent for an improvement in railroad switches, including illustrations.
Date: October 22, 1872
Creator: Fitzsimmons, Henry
Partner: UNT Libraries Government Documents Department
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