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in creator/contributor: "Thomas, R. G."  
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Spark Plug.

Description: Patent for a spark plug with the capacity to afford an intense spark, prevent leakage of current, and to preclude fouling of the plug in carbon.
Date: October 24, 1922
Creator: Bronson, Fred L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pencil-Sharpener.

Description: Patent for a new and improved pencil sharpener "which will be simple and inexpensive in manufacture, highly effective in use, durable in service, and a general improvement in the art" (lines 20-23), including illustrations.
Date: March 22, 1921
Creator: Scougale, Malcolm
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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