Schoolfield; Daryl
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schoolfield; Daryl.The latest application filed is for "lay-in tile speaker system".
- Schoolfield; Daryl - High Ridge MO
| Patent | Date |
|---|---|
| Lay-in tile speaker system Grant 7,643,647 - Lowell , et al. January 5, 2 | 2010-01-05 |
| Lay-in tile speaker system App 20050204667 - Lowell, Wilhelm R. ; et al. | 2005-09-22 |
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