Waldhauer; Frederick Donald
Patent Applications and Registrations
Patent applications and USPTO patent grants for Waldhauer; Frederick Donald.The latest application filed is for "margin monitoring circuit for repeatered digital transmission line".
- Waldhauer; Frederick Donald - Fair Haven NJ
| Patent | Date |
|---|---|
| Margin monitoring circuit for repeatered digital transmission line Grant 3,898,564 - Waldhauer , et al. August 5, 1 | 1975-08-05 |
| Automatic Equalizer For Digital Cable Transmission Systems Grant 3,728,649 - Waldhauer April 17, 1 | 1973-04-17 |
| Voltage Level Shifter Circuit With Current Ratio Control Of Transconductive Impedance Of Semiconductor Grant 3,628,127 - Waldhauer December 14, 1 | 1971-12-14 |
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