UNT Libraries Government Documents Department - 38 Matching Results

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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: 1917
Creator: Geological Survey (U.S.)
Location Info:

Fort Worth 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: 1918
Creator: Geological Survey (U.S.)
Location Info:

Moldboard

Description: Patent for improvements in plow mold-boards, specifically for shedding sticky soil, and includes illustrations and description.
Date: April 8, 1913
Creator: Martin, William A. & Coleman, Robert J.

Moldboard

Description: Patent for a moldboard for plows that has a water holder to allow plaster of Paris covering the moldboard to be kept moist which prevents soil from sticking to the moldboard.
Date: August 27, 1912
Creator: Miller, Charles K.

Air-Compressor.

Description: Patent for a more efficient air compressor with high and low pressure chambers formed of mating sections that can be detached to make repairs to the piston as necessary.
Date: April 1, 1913
Creator: Murphy, Edward