Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402343 | Animal watering valve with protected biasing spring | Earl C. Thompson, Francis Rustin | 1983-09-06 |
| 4341182 | Animal watering apparatus | Francis Rustin | 1982-07-27 |
| 4267800 | Suspended watering system for poultry house | Francis Rustin | 1981-05-19 |