UNT Libraries Government Documents Department - 3 Matching Results
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- Cotton-Chopper.
- Patent for a cotton chopper with adjustable hoe positions.
- Potato-Digging Machine.
- Patent for a potato digging machine, which harvests the potatoes and puts them into bags.
- Puzzle.
- Patent for a wire puzzle, where the user tries to free a ring from the inside of the wires.