Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518050 | Rotating double barrel core sampler | Arild Andresen | 1985-05-21 |
| 4518051 | Percussion actuated core sampler | Arilo A. Andresen | 1985-05-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518050 | Rotating double barrel core sampler | Arild Andresen | 1985-05-21 |
| 4518051 | Percussion actuated core sampler | Arilo A. Andresen | 1985-05-21 |