Lefebvre; Fredrick L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lefebvre; Fredrick L..The latest application filed is for "immersion heater device".
- Lefebvre; Fredrick L. - Coral Gables FL
| Patent | Date |
|---|---|
| Immersion heater device Grant 4,707,590 - Lefebvre November 17, 1 | 1987-11-17 |
| Cable structure for immersion heaters or the like Grant 4,551,619 - Lefebvre November 5, 1 | 1985-11-05 |
| Liquid level responsive control device Grant 4,234,785 - Lefebvre November 18, 1 | 1980-11-18 |
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