Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669765 | Pair of conveyor worms for rotary positive-displacement pumps | Heinrich Moller | 1997-09-23 |
| 5651041 | Apparatus for measuring the density of accumulations of fibrous material in rod making machines of the tobacco processing industry | Reinhard Hoppe | 1997-07-22 |