Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5341965 | Plastic spring assembly for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1994-08-30 |
| 5332128 | Flap valve assembly for trigger sprayer | Wilhelmus J. J. Mass | 1994-07-26 |
| 5318206 | Trigger-piston connection | Wilhelmus Johannes Joseph Maas | 1994-06-07 |
| 5297701 | All plastic trigger sprayer | Emile B. Steijns, Wilhelmus Johannes Joseph Maas | 1994-03-29 |