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Counties
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Vehicle Wheel
Patent for a vehicle wheel. Illustration included.
Date:
October 26, 1909
Creator:
Hartman, Emil
System:
The Portal to Texas History
Geometrical Instrument
Patent for a geometrical instrument. This instrument is used to create a straight edge with pivoted blades, like a protractor, to be used for laying protracted angles, etc.
Date:
March 26, 1918
Creator:
Anderson, Andrew E.
System:
The Portal to Texas History