Hearing aids : part - 7 : methods for measurement of the performances characteristics of hearing aids for quality inspection on delivery
Hearing aids : part - 7 : methods for measurement of the performances characteristics of hearing aids for quality inspection on delivery
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- London BSI 1985
- 12 p.
- BSI 6083 : part - 7 : 1985 .
DBSI 6083 : part - 7 : 1985
DBSI 6083 : part - 7 : 1985