UNT Libraries Government Documents Department - 6 Matching Results

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Carbon-Removing Tool

Description: Patent for a new and improved carbon removing tool, which allows for the removal of carbon from the pistons of internal combustion engines. Includes illustrations.
Date: April 12, 1921
Creator: Slagle, Eugene H.
Item Type: Refine your search to only Patent

Cleburne Sheet

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 1:125000
Date: 1921
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.25 -97.25

Dallas Sheet

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 1:125000
Date: 1927
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.75 -96.75

Tractor-Coupling

Description: Patent for tractor coupling. The object of the invention is to provide a coupling for tractor and plow. When a plow hits an obstruction, the coupling will automatically disengage tractor and plow without breaking any parts.
Date: December 21, 1920
Creator: Hart, Lawrence H.
Item Type: Refine your search to only Patent
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