Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939934 | Combination instrument | Hugo Ritzenthaler | 1990-07-10 |
| 4532491 | Liquid-level transmitter with bell jar housing for gasoline tanks | Karl Rau | 1985-07-30 |
| 4461175 | Liquid level scale changeover measuring apparatus | Hans J. Baumgart, Klaus Albrecht | 1984-07-24 |
| 4425795 | Device for the electric monitoring of the level of a liquid contained in a container | Klaus Albrecht | 1984-01-17 |
| 4319658 | Device for the control of the traveling speed of a motor vehicle | Harald Collonia, Arnold Mann | 1982-03-16 |
| 4254491 | Pulse control for an electric clock | Manfred Stein | 1981-03-03 |