Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542483 | Method for overburden drilling, casing shoe and casing tube for the method, and coupling element for the casing tubes | — | 1996-08-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542483 | Method for overburden drilling, casing shoe and casing tube for the method, and coupling element for the casing tubes | — | 1996-08-06 |