Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667748 | Method of driving an element and an hydraulic impactor | — | 1987-05-26 |
| 4289275 | Method and device for breaking a hard compact material | — | 1981-09-15 |
| 4204715 | Method and device for breaking a hard compact material | — | 1980-05-27 |
| 4195885 | Method and device for breaking a hard compact material | — | 1980-04-01 |