DEL MAR, Calif. — Dick Tracy got an atom-powered two-way wrist radio in 1946. Marty Cooper never forgot it. The Chicago boy became a star engineer who ran Motorola’s research and development arm when ...
On April 3, 1973, Martin Cooper, an engineer from Motorola, made the first-ever call on a mobile phone to another engineer at a telecommunications rival company. Fifty years later, the mobile phone is ...
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