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Patent applications and USPTO patent grants for Williams; Frederick A..The latest application filed is for "vehicle-mounted, rear-directed message display apparatus".
Patent | Date |
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Vehicle-mounted, rear-directed message display apparatus Grant 6,178,677 - Williams January 30, 2 | 2001-01-30 |
High resolution digital phase detector Grant 5,486,867 - Hsu , et al. January 23, 1 | 1996-01-23 |
Processor based linked compressor-expander telecommunications system Grant 4,839,906 - Leveque , et al. June 13, 1 | 1989-06-13 |
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