Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624003 | Apparatus for heating electrically conductive bulk materials | Paul Eirich, Walter Eirich, Hubert Eirich | 1986-11-18 |
| 4560283 | Apparatus for closing and continuously emptying the container of a treatment machine | Paul Eirich, Hubert Eirich, Walter Eirich | 1985-12-24 |