Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131147 | Core drilling apparatus and method for converting between a core drilling assembly and a full-diameter drilling assembly | Alf Erik Berle, Arne Matzel | 2021-09-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131147 | Core drilling apparatus and method for converting between a core drilling assembly and a full-diameter drilling assembly | Alf Erik Berle, Arne Matzel | 2021-09-28 |