Texas Patents - 4 Matching Results

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Primary view of Electric Belt
Williams, Robert E.
July 5, 1887
Primary view of Method of and Apparatus for Treating Mineral Pitch.
Sellers, Harvey Lee; Conyngton, Hugh Ronald & Conyngton, Thomas
November 5, 1895
Primary view of Conduit Electric Railway.
de Voe, William R.
December 5, 1893
Primary view of Apparatus for Treating Hydrocarbons.
Andrews, Benjamin & Averill, Willard C., Jr.
August 5, 1919
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