| 摘要 |
1,119,447. Hearing aids. DANAVOX INTERNATIONAL A/S. 14 July, 1965 [26 March, 1965], No. 7539/68. Divided out of 1,119,445. Heading H4J. A hearing aid, such as described in Specification 1,119,445 comprises a housing containing a microphone which is open to the exterior through an opening in a wall of the housing, which wall, in use, faces a surface of the outer ear, the opening debouching into a recessed part of the exterior surface of said wall. |
