Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5050894 | Sealing device designed to achieve sealing between two parts having a possibility of relative rotation to a limited extent | Rene Merel | 1991-09-24 |
| 4829650 | Method and apparatus for tightening and/or slackening bolts | — | 1989-05-16 |