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Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 7319771 | Vibrator for bone conducted hearing aids A vibrator for a bone conduction type hearing aid device. The vibrator includes a coil for generating a dynamic magnetic field and two permanent magnets for generating a static magnetic field. The two permanent magnets are working independently from each other in th... | 01/15/2008 |
| 7242786 | Vibrator damping A variable-reluctance type vibrator for generating vibrations in a bone anchored hearing aid. The vibrator includes a vibrator plate and a bobbin base with a vibrator gap therebetween. The vibrator gap between the vibrator plate and the bobbin base, or some other sp... | 07/10/2007 |
| 7198596 | Coupling device for a two-part bone-anchored hearing aid apparatus A coupling device for attaching the external hearing aid part to the skull bone anchored part in a bone conducting hearing aid apparatus. The retaining force in the coupling device is substantially established with a permanent magnet. The bone anchored part and the ... | 04/03/2007 |
