Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533049 | Mining drill steels and methods of making the same | Terry L. Rein, Jr. | 2003-03-18 |
| 6516904 | Mining drill steels and methods of making the same | Terry L. Rein, Jr. | 2003-02-11 |