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A method to prevent unauthorized exchange nsta ends of optionally to be fastened kartenfoermigen information brackets, such as, for example, price tags, as well as device, the card and the pin in particular for carrying out the method
A method to prevent unauthorized exchange nsta ends of optionally to be fastened kartenfoermigen information brackets, such as, for example, price tags, as well as device, the card and the pin in particular for carrying out the method
