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blind voice

blind voice, Total:2 items.

In the international standard classification, blind voice involves: Road engineering, Aids for disabled or handicapped persons.

Association Francaise de Normalisation, blind voice

• NF S32-002:2004 Sound repetition devices for traffic lights for use by the blind or partially sighted.
• NF S32-002/A1:2015 Sound repetition devices for traffic lights for use by the blind or partially sighted - R25

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