Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214989 | Apparatus for cleaning a screen disposed in a water channel | Siegfried Rudolph | 1980-07-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214989 | Apparatus for cleaning a screen disposed in a water channel | Siegfried Rudolph | 1980-07-29 |