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Rat Trap

Description: Patent for a rat trap. Illustration included.
Date: December 28, 1909
Creator: Turnbo, Lycurgus S.
Partner: UNT Libraries Government Documents Department

Incandescent Lamp

Description: Patent for incandescent lamp. Illustration included.
Date: December 28, 1909
Creator: Crutchfield, Charles H. & Deshong, Andrew W.
Partner: UNT Libraries Government Documents Department

Cattle-Guard.

Description: Patent for a cattle guard for railroad tracks, which is activated by the pressure of a cow stepping on its platform and raises bars to block the the cow from crossing the track. It goes back down automatically when the pressure is removed off the platform.
Date: February 2, 1909
Creator: Crouch, Jim L.
Partner: UNT Libraries Government Documents Department
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