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Who Made That Cellphone The New York Times

8 Guys 6 Weeks How The Cell Phone Was Finally Invented The Atlantic

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World S First Smartphone Simon Launched Before Iphone

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Ibm Created The World S First Smartphone 25 Years Ago World Economic Forum

Mobile Phones History When Was The First Mobile Phone Invented

Martin Cooper Biography Inventions Facts Britannica

Cell Phone Inventor Martin Cooper On How His Technology Changed The World Good Times Santa Cruz

Meet The Black Inventor Who Created The First Digital Cell Phone Black History