1

Hearing aid for persons with an impaired hearing faculty

Year:
1993
Language:
english
File:
PDF, 125 KB
english, 1993
2

Hearing aid

Year:
1994
Language:
english
File:
PDF, 148 KB
english, 1994
3

Hearing aid

Year:
1994
Language:
english
File:
PDF, 132 KB
english, 1994
4

Speech enhancement based on auditory perception

Year:
1995
Language:
english
File:
PDF, 202 KB
english, 1995