Collection
Serial/Series Title
7.5 Minute Series (Topographic)
32
2000 Census County Subdivision Block Map
22
Digital US Topo Maps: 7.5 Minute Series (Topographic)
20
2000 Census County Block Map
18
1990 Census County Block Map
17
2010 Census County Block Map
17
2010 Census P.L. 94-171 County Block Map
17
15 Minute Series (Topographic)
14
Western United States 1:250,000
14
30 Minute Series
5
7 More
Decade
193 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
193
next
Low-Water Alarm For Boilers
Patent for "improvements in low water alarms for steam boilers and more particularly to those which are operated by the heat from the steam in the boiler, after the water therein has fallen below a predetermined danger point" (lines 15-20).
Date:
January 5, 1915
Creator:
Anderson, Williamson D. & Shearer, Edward J.
Object Type:
Patent
System:
The Portal to Texas History
Triple Valve
Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
Date:
August 13, 1912
Creator:
Anderson, Williamson D. & Shearer, Edward J.
Object Type:
Patent
System:
The Portal to Texas History
Protector for Detonator-Caps.
Patent for a detonator cap that acts as a "protecting device...to seal the inner end of the cap into which the adjacent end of the fuse is projected in use." (lines 13-16)
Date:
October 9, 1917
Creator:
Dillard, George L.
Object Type:
Patent
System:
The Portal to Texas History
Anthony 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 1:24000
Date:
1962
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Anthony 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 1:24000
Date:
1962
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Anthony 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 1:24000
Date:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Anthony 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 1:24000
Date:
2013
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Anthony 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 1:24000
Date:
2002
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Bassett Lake 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:
1954
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Bassett Lake 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:
1943
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo Quadrangle
Topographic map of a portion of Texas and of New Mexico from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1995
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo Quadrangle
Satellite image 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 1:24,000
Date:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1971
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1995
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1962
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1967
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
2012
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1995
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo 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 1:24000
Date:
1991
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carlsbad
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:
1976
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carlsbad
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:
1958
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carlsbad
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:
1958
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Carlsbad
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.)
Object Type:
Map
System:
The Portal to Texas History
Carlsbad
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.)
Object Type:
Map
System:
The Portal to Texas History