Querfurth; William Robert
Patent Applications and Registrations
Patent applications and USPTO patent grants for Querfurth; William Robert.The latest application filed is for "audio tone controller system, method, and apparatus".
- Querfurth; William Robert - Phoenix AZ
| Patent | Date |
|---|---|
| Audio tone controller system, method, and apparatus Grant 6,967,277 - Querfurth November 22, 2 | 2005-11-22 |
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