Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033795 | Method of mining a mineral deposit seam | Richard Farrar, William D. Mayercheck | 1991-07-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033795 | Method of mining a mineral deposit seam | Richard Farrar, William D. Mayercheck | 1991-07-23 |