Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424178 | Procedure and device for production of a preform of thermoplastic synthetic material by means of extrusion | Dieter Hess, Erich Kiefer | 1984-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424178 | Procedure and device for production of a preform of thermoplastic synthetic material by means of extrusion | Dieter Hess, Erich Kiefer | 1984-01-03 |