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1966-10-10 |
1970-09-16 |
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Improvements in or relating to stethoscopes
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1966-10-31 |
1970-09-29 |
Michael S Demaree |
Method and apparatus for the testing and treatment of hearing deficiencies
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1967-11-14 |
1970-09-03 |
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Verfahren und Schaltungsanordnung zum Verbessern der Verstaendlichkeit frequenzverzerrter Sprache
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1967-12-28 |
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1976-03-29 |
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Sensory prostheses
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Beltone Electronics Corporation |
Hearing aid with controllable wide range of frequency response
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1988-12-06 |
Matsushita Electric Industrial Co., Ltd. |
Low-pitched sound creator
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1986-05-23 |
1988-08-26 |
Franche Comte Universite |
Perfectionnements aux dispositifs de prothese auditive
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Hearing aid with programmable remote and method of deriving settings for configuring the hearing aid
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BTE/CIC auditory device and modular connector system therefor
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Hearing aid device for frequency compression
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Hearing aid and a method of improved audio reproduction
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Method and apparatus for adding audible noise with time varying volume to audio devices
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Parametrically formulated noise and audio systems, devices, and methods thereof
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