Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362237 | Material conveying system with a pneumatically or mechanically operated substantially upright conveyor provided with a device for loosening and transporting the material to the upright conveyor | Bernd Hardegen | 1982-12-07 |