Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4197202 | Biological sewage treatment plant | Ryszard Przybylowicz, Lech Narbutt | 1980-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4197202 | Biological sewage treatment plant | Ryszard Przybylowicz, Lech Narbutt | 1980-04-08 |