摘要 |
A hearing aid to be worn in the ear, particularly a concha or auditory-canal device with a housing containing or exhibiting microphone, amplifier, receiver, switch, volume control and a microphone opening and the like, the contour of which housing is essentially constructed to be D-shaped. <IMAGE>
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申请人 |
HUEBER, FRITZ, ING., WIEN, AT |
发明人 |
HUEBER, FRITZ, ING., WIEN, AT |