Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742219 | Air sweeping apparatus | Michael H. Lenzmeier | 2004-06-01 |
| 6735812 | Dual mode carpet cleaning apparatus utilizing an extraction device and a soil transfer cleaning medium | Frederick A. Hekman, Jeffrey D. Fystrom | 2004-05-18 |