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Sling-Shot.

Description: Patent for a sling shot that is more durable, efficient, and less likely to break. Includes instructions and one illustration.
Date: July 13, 1920
Creator: Jones, Ralph L.
Partner: UNT Libraries Government Documents Department

Toy

Description: Patent for improvements in the construction, arrangement, and combination of parts used in building articulated toy snakes that mimic the animal's movement. The patent and illustrations describe the shapes of the toy's sections and the manner of their hinged connection to one another.
Date: September 19, 1922
Creator: Davis, William Theodore
Partner: UNT Libraries Government Documents Department

Lock-Strike.

Description: Patent for simple and durable lock plates for door frames. This patent is for the keeper plates for door locks and is an invention "for rendering the plate adjustable both vertically and horizontally without detaching the same from the door jamb" (lines 11-14). Includes one illustration page and description.
Date: July 9, 1918
Creator: Russell, Leo
Partner: UNT Libraries Government Documents Department
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