Hearing aid to be worn behind the ear having battery and volume

Details Hearing aid to be worn behind the ear having battery and volume Hearing aid to be worn behind the ear having battery and volume

1985-03-21

1988-11-08

Ng, Jin F.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 692, H04R 2500

Patent

active

047838167

ABSTRACT:
A hearing aid of the type which is worn behind the ear has a battery compartment and a volume control knob at its lower end. The compartment and knob are at right angles to the longitudinal axis of the device.

REFERENCES:
patent: 3031537 (1962-04-01), Rose
patent: 3035127 (1962-05-01), Strzalkowski
patent: 3045073 (1962-07-01), Vickerson
patent: 3138491 (1964-06-01), Rabio
patent: 3209080 (1965-09-01), Guttner et al.
patent: 3749853 (1973-07-01), Ely et al.
patent: 3828142 (1974-08-01), Buttner
patent: 4354065 (1982-10-01), Buettner
Electronic Engineering, "An Integrated Circuit Hearing Aid", vol. 37, p. 101, Feb. 1965.

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