Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4206808 | Safety centering basket | — | 1980-06-10 |
| 4199011 | Sleeve for drill pipes | Helmut Husser | 1980-04-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4206808 | Safety centering basket | — | 1980-06-10 |
| 4199011 | Sleeve for drill pipes | Helmut Husser | 1980-04-22 |