Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885655 | Water pump protector unit | Larry D. Springer | 1989-12-05 |
| 4841404 | Pump and electric motor protector | William Walter Marshall, IV | 1989-06-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885655 | Water pump protector unit | Larry D. Springer | 1989-12-05 |
| 4841404 | Pump and electric motor protector | William Walter Marshall, IV | 1989-06-20 |