Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365679 | Drill bit | Martin B. Verburgh | 1982-12-28 |
| 4317850 | Method for applying a dense, hard, adhesive and wear-resistant layer of cermets or ceramic material on a metal object | Martin B. Verburgh | 1982-03-02 |