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Dr. Martin Cooper invents the cell phone.
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Dr. Martin Cooper changed the first phone to a flip phone that was 9 inches and had a battery life of one hour.
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Dr. Martin Cooper changed the first phone to a Clamshell Flip Phone that you could SMS text message on.
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Dr. Martin Cooper advanced the phone to a precursor to a Blackberry Smartphone.
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Dr. Martin Cooper advanced the phone to the first camera phone.
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The next phone was an IPhone 4s that is the smartest phone and has everything every other phone has and more.
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