UNT Libraries Government Documents Department - 2 Matching Results
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- Jack.
- Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.
- Needle for Graphophones and the Like.
- Patent for a gramophone needle that produces better sound due to allowing for vibrations and can be used longer by producing a a sharpened point on one side while playing that can be used the next time by turning over the needle.