Hearing aid

Details Hearing aid Hearing aid

1982-04-09

1984-05-08

Pellinen, A. D.

179107FD, H04R 2500

Patent

active

044476779

ABSTRACT:
A hearing aid has a reproducing transducer and a microphone each having a diaphragm and a sound conduction opening and being closed hermetically except for said sound conduction opening. The reproducing transducer and the microphone are so mounted and accommodated in a housing that the vibration planes of the respective diaphragms are not parallel to each other, and the respective sound conduction openings may be directed towards the outside of the housing.

REFERENCES:
patent: 3749853 (1973-07-01), Ely

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