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Crude Oil Refining Process
Patent for the refinement of crude oil, producing refined oil in an economic manor.
Date:
November 11, 1919
Creator:
Evens, Jewett G. P.
System:
The Portal to Texas History
Automobile -Tire.
Patent for a wire-wrapped casing for car tires.
Date:
November 29, 1919
Creator:
MIchero, William A.
System:
The Portal to Texas History