UNT Libraries Government Documents Department - 3 Matching Results
Search Results
- Process of Preserving Wood
- Patent for a process of preserving wood.
- Pump System.
- Patent for a pump system with an improved air compressor for use in cars that produces a very quiet engine.
- Shoe Blacking and Polishing Machine
- Patent for an invention "to improve the construction of shoe blacking and polishing machines" (lines 10-12) Illustrations included.