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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7845085 | Identifying a directional reference using rate gyros oriented along different axes A deployable stationary device includes a device support, rate gyros supported by the device support, the rate gyros being oriented along different axes, and a controller supported by the device support. The controller is arranged to receive rate gyro signals from t... | 12/07/2010 |
| 7194813 | Gyrocompass A gyrocompass has a gyrosphere which incorporates a rotor and floats in a liquid tank filled with an electrolyte, and a plurality of electrodes which are disposed in the gyrosphere and the liquid tank, and are respectively opposed through the electrolyte, wherein at... | 03/27/2007 |
| 6354011 | Orientation measuring device An orientation measuring device with a plurality of precision tooled grooves, indentations or the like. Two precision tooled adaptor bodies, preferably of cylindrical shape, are removably mountable in the indentations, where appropriate, for a given measu... | 03/12/2002 |
| 4791727 | Gyro apparatus In a gyro apparatus comprising a binnacle, a gyro the spin axis of which is made substantially horizontal, a supporting apparatus for supporting the gyro from the binnacle with a freedom of three axes, a north-seeking apparatus for giving a north-seeking ... | 12/20/1988 |
| 4481718 | Adjusting arrangement for compass repeaters The compass repeaters of a gyro-compass are adjusted by a follow-up motor (1) in response to differential signals between the north-indicating gyro-system and a gyro-system enveloping bowl (18) which is connected to the compass card. In order to permit ad... | 11/13/1984 |
| 4458426 | Gyroscopic apparatus A gyrocompass has a gimbal (18;218) rotatable about an upright axis (22;222) and a gyro (10;210) rotatably mounted in this gimbal (18;218) about an inner axis (16;216) transverse to the upright axis (22;222). The gyrocompass also includes a level sensor (... | 07/10/1984 |
