Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863299 | Applicator for liquid floor treatment preparations | Franz Kresse, Bernfrid Scheller | 1989-09-05 |
| 4863629 | Cleaning preparations for hard surfaces | Karl-Heinz Rogmann, Birgit Froehlich | 1989-09-05 |
| 4810291 | Floor care preparation | Gian D. Ameglio, Harald Bossek, Karl-Heinz Rogmann | 1989-03-07 |