Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7891443 | Hardfacing around ball loading hole for earth-boring bit | Alan J. Massey, David K. Luce | 2011-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7891443 | Hardfacing around ball loading hole for earth-boring bit | Alan J. Massey, David K. Luce | 2011-02-22 |