Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689472 | Apparatus for extrusion of polymers and plastic products formed with the apparatus | Kari Kirjavainen, Michael Sjoberg | 2004-02-10 |
| 6672324 | Method of manufacturing branched pipe, pipe manufacturing apparatus and branched pipe | — | 2004-01-06 |