File:Acousticon - 1906 hearing aid.jpg
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![File:Acousticon - 1906 hearing aid.jpg](http://up.wiki.x.io/wikipedia/commons/thumb/4/49/Acousticon_-_1906_hearing_aid.jpg/518px-Acousticon_-_1906_hearing_aid.jpg)
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![]() | This image appeared on Wikipedia's Main Page in the Did you know? column on 23 January 2011 (see archives). | ![]() |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:19, 16 January 2011 | ![]() | 1,106 × 1,280 (553 KB) | W Nowicki | {{Information |Description={{en|1=Probably from an advertisement for the "Acousticon", the first portable electric hearing aid, invented by Miller Reese Hutchison (1876–1944) in the USA and marketed there and in Europe.}} |Source=page 48 of ''Surdus in |
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