Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4298340 | Method and apparatus for producing a hydraulic binder | Horst Herchenbach | 1981-11-03 |
| 4236932 | Method and apparatus for producing a hydraulic binder | Horst Herchenbach | 1980-12-02 |