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DIN EN 62489-1-2015

Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010 + A1:2014); German version EN 62489-1:2010 + A1:2015

发布日期: 2015-10-01

实施日期: 2015-10-01

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