Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248485 | Earth boring bit with textured bearing surface | James E. White | 1981-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248485 | Earth boring bit with textured bearing surface | James E. White | 1981-02-03 |