Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062309 | Device for taking samples of bottom sediments from water basins | Martin Voll | 1991-11-05 |
| 4996887 | Device for taking samples of bottom sediments and bottom water from water basins | Martin Voll, Kharri I. Yankovsky | 1991-03-05 |
| 4709584 | Device for taking samples of bottom sediments from water basins | Martin Voll, Kharri I. Yankovsky | 1987-12-01 |