Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238220 | Manually and electrically controlled butterfly valve | Sidney D. Shell | 1993-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238220 | Manually and electrically controlled butterfly valve | Sidney D. Shell | 1993-08-24 |