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475
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331
USGS Topographic Map Collection
146
Texas Patents
62
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11
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5
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The Cross Section
451
2000 Census County Subdivision Block Map
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66
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2010 Census P.L. 94-171 County Block Map
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1,036 Matching Results
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1,033 - 1,036 of
1,036
Dirigible Headlight Construction for Automobiles.
Patent for improvements in dirigible headlight constructions for automobiles. Two major useful improments are mentioned: a) a headlight that is constructed so that when a car turns, the headlight on the turning side of the car will alone be turned in the same direction and b) a headlight that is constructed so that the driver can manually turn either headlight, allowing the headlights to act as search lights if necessary.
Date:
November 7, 1922
Creator:
Ross, Maxwell
Object Type:
Patent
System:
The Portal to Texas History
Cut-Off for Concrete-Mixers
Patent for a cut-off valve for rotary concrete mixers. Illustrations included.
Date:
August 1, 1911
Creator:
Shero, Clarence E.
Object Type:
Patent
System:
The Portal to Texas History
Frog and Guard Rail for Railway Tracks
Patent for a frog and guard rail for railway tracks. Illustration included.
Date:
June 6, 1911
Creator:
Thomas, John W.
Object Type:
Patent
System:
The Portal to Texas History
Design for a Bridle-Bit.
Design patent for a bride-bit that contains a novel design within the cheeks.
Date:
June 20, 1899
Creator:
Jackson, Claude D.
Object Type:
Patent
System:
The Portal to Texas History