UNT Libraries Government Documents Department - 6 Matching Results
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- Cotton Picker
- Patent for a cotton picker. Illustration included.
- Improvement in Screw-Propulsion.
- Patent for "a new and useful Improvement in Screw-Propellers and their adaptation to the hulls of vessels" (lines 4-6) including illustrations.
- Improvement in the Manufacture of Fertilizers.
- Patent for a process of treating waste animal matter from tallow-rendering factories with plaster-of-paris for use as fertilizer.
- Means for Preventing Clogging of the Working Barrels of Pumps.
- Patent for an apparatus that prevents the clogging of the working barrels of pumps.
- Rotary Drilling Apparatus dated November 5, 1918
- Patent for a rotary drilling apparatus that specifies in wells and mines.
- Two-Piece Box.
- Patent for certain new and useful improvements in two piece boxes, including instructions and illustrations.