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sound pathway other than using the ears, ear canal, and eardrum. Werner Bottesch

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"new generation" of hearing aids

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Efforts to hide hearing aids began during the 19th century.

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In the 17th century, "bone conduction" was discovered.

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Ludwig van Beethoven was one of the most notable fans of these headphones.

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The first "official" mention of hearing aids appears in a book published in 1588, titled Natural Magick.