Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812048 | Material feed device for an extruder | Volkmar Wolfl | 1989-03-14 |
| 4809795 | Support frame-free hopper-type weighing device for extruders | — | 1989-03-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812048 | Material feed device for an extruder | Volkmar Wolfl | 1989-03-14 |
| 4809795 | Support frame-free hopper-type weighing device for extruders | — | 1989-03-07 |