Lernstift - Smart Pen for writing without Mistake

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Cool..Nicethread .... +1 reputed...
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This is very useful for the growing age childrens, where they can rectify by themselves
"We learn from our failure, not from our success"
how the Lernstift - Smart Pen detects whether our name is correct or not

    Lernstift - Smart Pen for writing without Mistake