Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351010 | Resistance ratio measurement utilizing measuring currents of opposite plural direction | Hans Leopold, Klaus SCHRÖCKER | 1994-09-27 |
| 5339258 | Apparatus for determining the density of liquids and gases from a period of an oscillator filled with a test sample | Hans Leopold, Helmut Heimel | 1994-08-16 |