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Violin Bow

Description: Patent for an addition to tip of the violin bow, including illustrations.
Date: September 15, 1903
Creator: Roark, B. Mortimer
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for improving an Acetylene-Gas Generator. To eliminate a check valve between the generator and the gasometer, this will purify the gas and keep siphoning off of water from occurring.
Date: September 8, 1903
Creator: Gribble, William A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car Step

Description: Patent for a car step. This invention is designed to be swung down into position from a fixed under the bottom of the rail car. Illustration included.
Date: September 18, 1906
Creator: Davis, George W. & Hicks, Joseph A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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