Resource Type

Combined Planter, Chopper, And Cultivator. (open access)

Combined Planter, Chopper, And Cultivator.

Patent for a new and useful improvement in "combined cotton planters, choppers, and cultivators" (line 9-11).
Date: December 6, 1898
Creator: Albreekt, Niklaus
System: The Portal to Texas History
Process of Electrostatic Magnetic Separation. (open access)

Process of Electrostatic Magnetic Separation.

Patent for an improved process of electrostatic magnetic separation to separate the particles of a mixture or mass.
Date: December 6, 1910
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System: The Portal to Texas History
Tire for Vehicle-Wheels. (open access)

Tire for Vehicle-Wheels.

Patent for a tire for vehicle wheels with springs.
Date: December 6, 1910
Creator: Guthrie, Nehemiah & Johnson, Callender L.
System: The Portal to Texas History