Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863299 | Applicator for liquid floor treatment preparations | Rainer Osberghaus, Franz Kresse | 1989-09-05 |
| 4850075 | Manual surface wiper assembly with handle and support therefor | Franz Kresse | 1989-07-25 |