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IEC 631 74:2021 pdf download – Electrically operated toothbrushes – Methods for measuring the performance IEC standards download

IEC 631 74:2021 pdf download – Electrically operated toothbrushes – Methods for measuring the performance

IEC 631 74:2021 pdf download - Electrically operated toothbrushes – Methods for measuring the performance. 1 Scope This document applies to electrically operated toothbrushes used for electric cleaning of teeth. Rechargeable toothbrushes and primary battery operated toothbrushes,...
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