Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320655 | Quantity of flow meter | Johann Kammermaier, Rudiger Mueller | 1982-03-23 |
| 4299126 | Device for measuring the level of a liquid in a container | Erwin Heuwieser, Johann Kammermaier | 1981-11-10 |