UNT Libraries Government Documents Department - 2 Matching Results
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- Improvement in Apparatus for Boring Artesian Wells.
- Patent for improvement in pump-drills for boring artesian wells by “combining pump-valves and pistons with a drill for boring artesian or other wells” (lines 21-23), including illustration.
- Improvement in Presses.
- Patent for pressing cotton, hay, and tobacco with moveable notches for more control in producing bales and using less power than previous presses, including illustration.