4 Matching Results

Search Results

Patent for improvement of spark-plugs, an automotive engine component.

Date: September 2, 1919

Creator: Hill, John L.

Partner: UNT Libraries Government Documents Department

Patent for a weed killing car that runs on a railroad track. It distributes herbicide along the line of the railroad track.

Date: June 2, 1914

Creator: Ortan, Ingomar F.

Partner: UNT Libraries Government Documents Department

Patent for a train car that kills weeds on the tracks with illustrations included.

Date: December 2, 1913

Creator: Orton, Ingomar François

Partner: UNT Libraries Government Documents Department

Patent for a process for making salve from sheep sorrel leaves and stems in a copper pot that produces a medical paste.

Date: April 2, 1912

Creator: Herald, John W.

Partner: UNT Libraries Government Documents Department