Who was"Alexander Grham Bell and what did he invent?
He was Scientist Bell and he Invent Telephon.
Who was"Lavis Braille"and What did he invent?
He was a French linguist and he invented Reading for Blind.Who was "Guglileno Marconi"and
what did he invent?
He was"Inventor and what did invent comunication Thelegraphic.
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