Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821422 | Drill bit for a down-the-hole drill hammer having spirally arranged cutting inserts | — | 2017-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821422 | Drill bit for a down-the-hole drill hammer having spirally arranged cutting inserts | — | 2017-11-21 |