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Pump.
Patent for a "pump for effectively pumping oil or quicksand from wells troubled with quicksand." (Lines 8-10) Includes instructions and illustrations.
Date:
March 30, 1897
Creator:
Wintz, James Philip
System:
The Portal to Texas History
Pump-Piston.
Patent for new and improved pump piston. This patent is accompanied by drawings and the object is to provide a pump piston wherein the the piston body proper is securely maintained against shifting upon the piston rod.
Date:
March 22, 1921
Creator:
Yount, Miles F.
System:
The Portal to Texas History
Plow.
Patent for a new type of wing plow with new improvements designed to prevent earth from being thrown onto previous plants.
Date:
March 13, 1917
Creator:
Moore, William F.
System:
The Portal to Texas History