UNT Libraries Government Documents Department - 3 Matching Results
Search Results
- Mold for Typographical Casting-Machines.
- Patent for a mold for typographical casting machines which may be altered to produce slugs of different sizes.
- Propeller
- Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
- Spring-Washer for Piano-Flanges.
- Patent for a spring washer for piano flanges that prevents the flanges from becoming loose over time.