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Before making a decision concerning the purchase of an electronic antitartre, I wish to know your opinion concerning the AT820 INDUCTION ELECTRONIC ANTARTRE of NOXAT FRANCE located at WOIPPY.

I do not know the society you are talking about which is undoubtedly honorable. As for the "electronic induction antitartres", my position is constant. None of these devices (perhaps except one, the ATX 634) receives to my knowledge a favorable opinion of the Center Scientific and Technical Building (CSTB). The very principle of operation of these devices remains very controversial, even disparaged, as pointed out by our colleague CHOOSE.

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