Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4190125 | Drill bit and steel combination for improved fluid flow | Kenneth C. Emmerich | 1980-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4190125 | Drill bit and steel combination for improved fluid flow | Kenneth C. Emmerich | 1980-02-26 |