Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623121 | Butterfly valve seat | — | 1986-11-18 |
| 4504712 | Plunger switch with pivoted actuator | Milton N. Ives | 1985-03-12 |
| 4202365 | Fire tested butterfly valve | Tadashi Aoki, Jerry D. MacAfee | 1980-05-13 |