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Clamp

Description: Patent for clamps used in framing and forming of concrete construction. The clamps are easily removed and reused eliminating the need for wooden framing used in the past.
Date: February 24, 1920
Creator: Ferguson, William D.
Partner: UNT Libraries Government Documents Department

Combined Compositor's Stick and Type Chase

Description: Patent for combined compositor's stick and type chase. Illustration included.
Date: November 24, 1903
Creator: Weeks, Frank W.
Partner: UNT Libraries Government Documents Department

Jail

Description: Patent for community style jails, eliminating single-cell jail housing.
Date: June 24, 1913
Creator: Youngblood, David Franklin
Partner: UNT Libraries Government Documents Department

Air-Brake

Description: Patent for an air brake with instructions and illustrations.
Date: November 24, 1914
Creator: Wolf, Gustav B.
Partner: UNT Libraries Government Documents Department

Aerodrome

Description: Patent for an aerodrome which is a heavier than air flying machine powered by motorized propellers
Date: August 24, 1909
Creator: Sinclair, William
Partner: UNT Libraries Government Documents Department
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