Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697753 | Stepped precision winding process | Heinz Schippers, Rolf Kalthoff | 1987-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697753 | Stepped precision winding process | Heinz Schippers, Rolf Kalthoff | 1987-10-06 |