Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393891 | Device for temporarily rinsing a water cock countersunk in the ground | William J. Tuil | 1983-07-19 |
| 4271862 | Check valve and method of manufacturing said check valve | — | 1981-06-09 |