Serial/Series Title
Counties
14 Matching Results
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14
San Marcos 3-d Quadrangle
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 1:48000
Date:
1924
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Luling Quadrangle
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 1:62500
Date:
1929
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Hunter Quadrangle
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 1:62500
Date:
1929
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
San Marcos 3-c Quadrangle
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 1:48000
Date:
1924
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
San Marcos 4-c Quadrangle
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 1:48000
Date:
1925
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
New Braunfels No 1 Quadrangle
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 1:48000
Date:
1925
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
New Braunfels Quadrangle
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 1:62500
Date:
1927
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
New Braunfels No 4 Quadrangle
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 1:48000
Date:
1924
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
New Braunfels Quadrangle
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 1:62500
Date:
1927
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
New Braunfels Quadrangle
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 1:62500
Date:
1927
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Smiley Sheet
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:
1920
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Automatic Heat-Regulator for Incubators.
Patent for a device that allows for automatic temperature regulation in incubators. It operates by extinguishing and lighting the incubator's heating lamp wick to maintain a predetermined temperature.
Date:
March 29, 1921
Creator:
Wiedner, Charles
Object Type:
Patent
System:
The Portal to Texas History
Stub-Axle Adjustment Device.
Patent for useful improvements for Stub-Axle Adjustment Devices. This device will allow for the stub-axle to be efficiently adjusted in both a vertical plane and a transverse plane with respect to the machine.
Date:
November 8, 1921
Creator:
Kopplin, Otto E.
Object Type:
Patent
System:
The Portal to Texas History
Crank-Axle Adjustment.
Patent for a crank axle adjustment "to simplify and produce and efficient crank axle that will efficiently perform its function in connection with the general structure of a plow or cultivator." (lines 13-17)
Date:
June 15, 1920
Creator:
Kopplin, Otto E.
Object Type:
Patent
System:
The Portal to Texas History