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Process of Refining Asphaltic Mineral Oils.

Description: Patent for process for refining asphaltic mineral oils such as might be found in wells in Texas and Louisiana. Designed to remove asphaltum.
Date: November 11, 1902
Creator: Mims, John Carwile
Partner: UNT Libraries Government Documents Department

Process of Making Artificial Fuel

Description: Patent for process of creating artificial fuel and the resulting product.
Date: March 11, 1902
Creator: Steiner, Robert
Partner: UNT Libraries Government Documents Department

Conduit Electric Railway.

Description: Patent for a surface trolley for electric railways that operates "upon the surface of the pavement or ground between the tracks of the road, for connecting the car with the motor power, in place of the trolley and over head wires now suspended upon the unsightly poles in the center or at the sides of the street, which are found to be very objectionable on account of their obstructing the passageway in the streets and upon the side walks, and the wires preventing the free movement of fire compan… more
Date: April 11, 1893
Creator: de Voe, William R.
Partner: UNT Libraries Government Documents Department
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