Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638329 | Filter having a folded dust filter element and a cleaning device for the folded dust filter element | — | 2003-10-28 |
| 6578644 | Percussion rotary hand-held power tool with a rotatable guide tube | Jens Frenzel, Hans-Werner Bongers-Ambrosius | 2003-06-17 |