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Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-117251 This also does not provide
Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-117251 This also does not provide
$142.00
Description
This also does not provide an efficacy-evaluation method for an anti-fouling system using a specific substance
Developing a security framework
Andrew Bond and Peter Watt
BS 1722-1:2006 supersedes BS 1722-1:1999 which will be withdrawn
Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-117251 This also does not provide1 Scope This standard is applicable to insert earphones which can be fitted to an earmould inserted into the ear canal.
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