Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486173 | High-temperature, high-pressure workpiece treatment system | Ernst Hieber, Helmut Martini, Gerhard-Wilhelm Ziegler | 1984-12-04 |
| 4474547 | Gas supply dosing device for explosive mixtures | Peter Drexel, Helmut Martini | 1984-10-02 |