Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6915966 | Apparatus for the gunning of a refractory material and nozzles for same | Erwin Anton Letzgus, Jr., Harold Harrison Gordon, William J. Peschler, John Anton Parkinson | 2005-07-12 |