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Alvaro Francisco Carlos Reynoso of France files a U.S. patent for an "elixir" containing fluoride of potassium, sodium, or ammonium, as "invigorating, nutritious, and complemental to food ... for infants
at the period when the bones and teeth are in process of formation."

1874

( September 25, 2012 )

Alvaro Francisco Carlos Reynoso of France files a U.S. patent for an "elixir" containing fluoride of potassium, sodium, or ammonium, as "invigorating, nutritious, and complemental to food ... for infants at the period when the bones and teeth are in process of formation."

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