UNT Libraries Government Documents Department - 3 Matching Results
Search Results
- Acetylene-Gas Generator.
- 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.
- Car Step
- 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.
- Violin Bow
- Patent for an addition to tip of the violin bow, including illustrations.