Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687450 | Machine, such as a vacuum cleaner, which exhausts a clean gas, which machine has a protective bumper | Klaus Stein | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687450 | Machine, such as a vacuum cleaner, which exhausts a clean gas, which machine has a protective bumper | Klaus Stein | 1997-11-18 |