Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601475 | Hardfaced drill bit structures and method for making such structures | Dennis Bond, Hubert W. Penka, Jr., Cary A. Roth | 2003-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601475 | Hardfaced drill bit structures and method for making such structures | Dennis Bond, Hubert W. Penka, Jr., Cary A. Roth | 2003-08-05 |