摘要 |
First and second electronic labels, the labels having respective first and second near-field electronic communications means suitable for being activated by applying a magnetic field. The first and second labels further comprise respective first and second magnetic shielding means placed respectively between a first face of the body and the first communications means and between a second face of the body and the second communications means in such a manner that applying the magnetic field to one of the faces of the body activates only one of the first and second communications means.
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