Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174680 | Pressurized fluid flow system having multiple work chambers for a DTH hammer and normal circulation hammer thereof | — | 2021-11-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174680 | Pressurized fluid flow system having multiple work chambers for a DTH hammer and normal circulation hammer thereof | — | 2021-11-16 |