Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4574399 | Flushing, toilet tank-fed, primer valve for sewer line drain traps | — | 1986-03-11 |
| 4429568 | Closure plug assembly for pressure testing liquid drain and vent plumbing pipe systems | — | 1984-02-07 |
| 4204556 | Self-contained, automatic primer valve for sewer line drain traps | — | 1980-05-27 |