UNT Libraries Government Documents Department - 3 Matching Results

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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.
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