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Simon Newcomb, astronomer ; 1888
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| Number | Title | Issue Date |
| 7096120 | Method and arrangement for guiding a user along a target path An audio-based guide arrangement is provided for guiding a user along a target path by the use of virtual audio beacons. The user's current location is sensed and compared to the target path. Sounds are fed to the user, for example through stereo headphones, to simu... | 08/22/2006 |
| 5068624 | Amplifier In an amplifier using at least two transistors are amplifying elements, the bases (or gates) and the collectors (or drains) of the transistors are commonly connected. A first impedance element is connected between the bases (or gates) and the collectors (... | 11/26/1991 |
