Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999117 | Monitoring method for wastewater pump station and compatible apparatus | Jukka Palmu, Eero Oinonen, Leo Numminen, Jyrki Tolvanen | 1991-03-12 |
| 4297751 | Sewer system | Henry Olin, Nils Tallberg | 1981-11-03 |
| 4184506 | Vacuum sewer system | Krister Nordberg | 1980-01-22 |