Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921738 | Device for identifying the location of coal ropes | William Bailey, Jeffrey S. Mann, David H. Nilson, Joseph W. Quinn | 2011-04-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921738 | Device for identifying the location of coal ropes | William Bailey, Jeffrey S. Mann, David H. Nilson, Joseph W. Quinn | 2011-04-12 |