Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899890 | Separating apparatus with wobbling take-up roller | Richard C. Ewing, Walter V. Kuczewski, Helmut Kunig | 1990-02-13 |
| 4819811 | Separating apparatus with wobbling take-up roller | Richard C. Ewing, Walter V. Kuczewski | 1989-04-11 |