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Engine.
Patent for a new engine designed to maximize power output by using a single crank's bearing surface and increase the crank power without lengthening the piston travel.
Date:
October 18, 1921
Creator:
Ingram, Joseph D.
System:
The Portal to Texas History
Sand Screen
Patent for a sand screen. This invention is for sifting and screening sand. Illustration included.
Date:
October 25, 1910
Creator:
Tress, Paul G.
System:
The Portal to Texas History