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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.
Object Type:
Patent
System:
The Portal to Texas History
Agricultural Water Conservation Grant Final Report
Report on the Harlingen Irrigation District's improvements to the Texas Water Development Board's Agricultural Water Conservation program. The report includes project's location, a detailed project description, and several photographs of the project site.
Date:
August 26, 2016
Creator:
McLemore, Tom; Arendt, Johanna; Ford, Karen & Khan, Tabish
Object Type:
Report
System:
The Portal to Texas History
Vehicle Wheel
Patent for a vehicle wheel. Illustration included.
Date:
October 26, 1909
Creator:
Hartman, Emil
Object Type:
Patent
System:
The Portal to Texas History