Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805661 | Faucet valve with anti-siphon back flow preventer | Alfons Knapp, Joe D. Hutto | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805661 | Faucet valve with anti-siphon back flow preventer | Alfons Knapp, Joe D. Hutto | 1989-02-21 |