Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619888 | Flange nut for mine roof bolt | Frank Calandra, Jr., John C. Stankus, Michael Cokus, John G. Oldsen | 2003-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619888 | Flange nut for mine roof bolt | Frank Calandra, Jr., John C. Stankus, Michael Cokus, John G. Oldsen | 2003-09-16 |