Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4545532 | Adjustable oscillating fan-jet sprinkler | Friedrich Schanz, Alexander Perrot | 1985-10-08 |
| 4511085 | Swivel drive for fan-jet sprinkler | Friedrich Schanz, Eberhard Schucker, Alexander Perrot | 1985-04-16 |
| 4379523 | Sprinkler | Friedrich Schanz, Alexander Perrot | 1983-04-12 |