Burnham; Fred E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Burnham; Fred E..The latest application filed is for "direction locating system".
- Burnham; Fred E. - Silver Spring MD
| Patent | Date |
|---|---|
| Direction locating system Grant 4,103,304 - Burnham , et al. July 25, 1 | 1978-07-25 |
| Multiple Digit Code Direction Finder Self-adjusting To Different Frequencies Grant 3,631,496 - Fink , et al. December 28, 1 | 1971-12-28 |
| Digital Frequency Detecting System Grant 3,617,900 - Fink , et al. November 2, 1 | 1971-11-02 |
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