Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790264 | Animal waterers for snap-on assembly with water pipe | Frank Lack | 1988-12-13 |
| 4753196 | Animal watering apparatus and method | Frank Lack | 1988-06-28 |
| 4402343 | Animal watering valve with protected biasing spring | Earl C. Thompson, Morris C. Keller | 1983-09-06 |
| 4341182 | Animal watering apparatus | Morris C. Keller | 1982-07-27 |
| 4267800 | Suspended watering system for poultry house | Morris C. Keller | 1981-05-19 |