Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869463 | Lubrication system | Heikki Niittyla, Hannu Trygg, Esko Poikolainen, Raumo Vehmaa | 1989-09-26 |
| 4773655 | Slide ring seal | Markku Lummila, Esa Salovaara, Esko Lopperi, Juhani Kuusela | 1988-09-27 |