Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772846 | Method for drilling shaker bores into the cooling channel of a single-part piston | — | 2004-08-10 |
| 6729291 | Multipart cooled piston for an internal combustion engine | Dieter Messmer | 2004-05-04 |