Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5322120 | Electro hydraulic deep well sampling assembly | Einar B e, Stig Holgersen, Hans-Paul Carlsen, Carl Bastiansen | 1994-06-21 |
| 4192704 | Expandable muff mould | — | 1980-03-11 |