Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993496 | Quick release valve for sprinkler head | Armin Riedle, Horst Zientek, Nikolaus Grainer | 1991-02-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993496 | Quick release valve for sprinkler head | Armin Riedle, Horst Zientek, Nikolaus Grainer | 1991-02-19 |