Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497536 | Roof support arrangement for mining apparatus and roof bolting equipment | John R. Frederick | 2002-12-24 |
| 6386640 | Oil tank arrangement for mining apparatus and roof bolting equipment | — | 2002-05-14 |
| 6364148 | Storage pod for underground mining machine | John R. Frederick | 2002-04-02 |