Ehrenspeck; Hermann W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ehrenspeck; Hermann W..The latest application filed is for "dual frequency band directional antenna system".
- Ehrenspeck; Hermann W. - Belmont MA
| Patent | Date |
|---|---|
| Dual frequency band directional antenna system Grant 4,183,027 - Ehrenspeck January 8, 1 | 1980-01-08 |
| High-frequency Waveguide Feed In Combination With A Short-backfire Antenna Grant 3,774,223 - Ehrenspeck , et al. November 20, 1 | 1973-11-20 |
| Optimized Reflector Antenna Grant 3,742,513 - Ehrenspeck June 26, 1 | 1973-06-26 |
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