Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797027 | Automatic level-regulating sluice | Gilles Combes | 1989-01-10 |
| 4576512 | Rotary sluice gate | Gilles Combes | 1986-03-18 |
| 4449851 | Energy-efficient automatic sluice gate for sustaining a fluid level | Gilles Combes | 1984-05-22 |