| http://www.w3.org/ns/prov#value | - The invention relates to the ear piece of a hearing aid, namely the portion which is inserted into or otherwise covers the external ear canal The ear piece may be the hearing aid itself or a component thereof, for example, a canal hearing aid or an in-the-ear hearing aid; or an attachment, such as the end of a flexible sound tube of a behind-the-ear hearing aid or other sound transmission device.
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