Bureau of Indian Standards  <br/><br/>
Indian Standard behind the ear (BET) hearing aids digital specification  Reaffirmed 2016 

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 - New Delhi  Bureau of Indian Standards  2013 
 - 8 p.   
 -   .
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<br/><br/>  Hearing Aids - Specification 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing Aids - Specification
<br/><br/><label>Dewey Class. No.: </label>WV200  / BUR