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Compressor.

Description: Patent for a refrigerating machine compressor, which compresses more gas, cools the compressor with the incoming gas, and uses excess heat to dry the gas coming in.
Date: April 19, 1910
Creator: Mayhew, John Daugherty
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trammel's Trace: The First Road to Texas from the North

Description: Map showing "Trammel's Trace," the first road from the north (present-day Arkansas) into Texas, used around 1800. It includes notations for abandoned settlements, modern cities, and Caddo villages documented from 1800 to 1840, as well as other historic roads used at the time of Trammel's Trace.
Date: 2015
Creator: Pinkerton, Gary
Item Type: Refine your search to only Map
Location: None
Partner: UNT Libraries

Tyler

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 1:250000
Date: 1984
Creator: United States. Army. Corps of Engineers.
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Tyler

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 1:250000
Date: 1984
Creator: United States. Army. Corps of Engineers.
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Tyler

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 1:250000
Date: 1963
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Tyler

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 1:250000
Date: 1992
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Tyler

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 1:250000
Date: 1973
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Tyler

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 1:250000
Date: 1956
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.50 -95.00
Partner: UNT Libraries Government Documents Department

Marshall

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 1:100000
Date: 1986
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 32.75 -94.50
Partner: UNT Libraries Government Documents Department
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