UNT Libraries Government Documents Department - 4 Matching Results
Search Results
- Storage Battery.
- Illustration of a storage battery for patent.
- Finish-Remover.
- Patent for specifications of a finish-remover made with paraffin wax and other materials.
- Preserved Wood and Process of Making Same.
- Patent for a method of injecting preservative materials, in a manner that will reduce the cost of the treatment without greatly reducing the preservative action.
- Preserved Wood and Process of Making Same
- Patent for a process for preserving wood by treating it with various anti-septic chemicals mixed with oil that stops the wood from decaying for a long time.