Hearing aids : part - 6 : specification for characteristics of electrical input circuits for hearing aids
Hearing aids : part - 6 : specification for characteristics of electrical input circuits for hearing aids
-
- London BSI 1985
- 3 p.
- BSI 6083 : part - 6 : 1984 .
DBSI 6083 : part - 6 : 1984
DBSI 6083 : part - 6 : 1984