Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730335 | Precompression valve for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1998-03-24 |
| 5626259 | Two liquid sprayer assembly | Wilhelmus Johannes Joseph Maas | 1997-05-06 |