Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681453 | Reciprocal movable screens in a vertically elongated vessel | Johan C. F. C. Richter | 1997-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681453 | Reciprocal movable screens in a vertically elongated vessel | Johan C. F. C. Richter | 1997-10-28 |