Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7845040 | Device and method for mechanical cleaning of grooves | Walter Meier | 2010-12-07 |
| 7094293 | Device and method for mechanical cleaning of grooves | Walter Meier | 2006-08-22 |