Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238384 | Apparatus for producing a composite pipe in a rotating drum | Peter Hartmann | 1993-08-24 |
| 5082614 | Method for producing a composite pipe in a rotating drum | Peter Hartmann | 1992-01-21 |
| 4648633 | Socket joint | — | 1987-03-10 |