Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772518 | Method of forming flat-tube insertion slots in a header tube | Walter Demuth, Martin Kotsch, Hans-Joachim Krauss, Hagen Mittelstrass, Harald Raiser +3 more | 2004-08-10 |