Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463860 | Method and apparatus for re-railing a de-railed railroad car | — | 2002-10-15 |
| 5203264 | Re-railing unit for derailed rail car | — | 1993-04-20 |
| 5199493 | Methods and apparatus for shutting a conduit | — | 1993-04-06 |
| 4463986 | Illumination device and method of use in tunnel alignment | Dominick Costa | 1984-08-07 |
| 4314615 | Self-propelled drilling head | Oliver E. Palmer | 1982-02-09 |