Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392534 | Composite nozzle for earth boring and bore enlarging bits | — | 1983-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392534 | Composite nozzle for earth boring and bore enlarging bits | — | 1983-07-12 |