Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8844445 | Anchor cribber | David M. Brenny, Frank D. Gall, III | 2014-09-30 |
| 7658152 | Tie plate inserting machine | David M. Brenny, Frank D. Gall, III | 2010-02-09 |
| 7442115 | Railway grinder | David M. Brenny, Karl Rabenhorst | 2008-10-28 |