UNT Libraries Government Documents Department - 4 Matching Results

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Huffman Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1920
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.06 -95.06

Valve-Lifter For Automobiles

Description: Patent for improvement in valve-lifters for automobiles. The object of the device is to compress a spring of the intake and exhaust valves of an automobile. Also for the quick removal of the valve.
Date: February 15, 1921
Creator: Patterson, George G.
Item Type: Refine your search to only Patent

Mouse and Rat Poisoner.

Description: Patent for mouse and rat poison. This is a device meant for mice and rats that has bait for the purpose of poisoning these animals. This device prevents access from other animals.
Date: October 11, 1921
Creator: Vaden, Willie T. Jr
Item Type: Refine your search to only Patent
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