Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599550 | Disposable, biodegradable, wax-impregnated dust-cloth | Hubert Wiesner, Ulrich Lersch | 1997-02-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599550 | Disposable, biodegradable, wax-impregnated dust-cloth | Hubert Wiesner, Ulrich Lersch | 1997-02-04 |