Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850751 | Method and apparatus for introducing bulk material into a pneumatic conveyor conduit | Bernd Federhen | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850751 | Method and apparatus for introducing bulk material into a pneumatic conveyor conduit | Bernd Federhen | 1989-07-25 |