Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4502951 | Suction device for obtaining dust samples | Rainer Koenig, Rolf A. Sieglen, Helga Heide | 1985-03-05 |
| 4482864 | Process and equipment for collecting magnetite-containing ore dust samples and determining the magnetite and phosphorous contents thereof | Rainer Koenig, Rolf A. Sieglen, Helga Heide | 1984-11-13 |