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  1. Bokep

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  2. Motorola
    • According to 2 sources
    Motorola developed the first portable cell phone in 1973. The hand-held device was shaped like a brick and weighed around 2.4 pounds. It was called the DynaTAC 8000X and is considered as the original cell phone. The device only operated for a maximum of 30 minutes talk time, and that was with a huge 10 hours of charging!
    When was the first cell phone invented? The first portable cell phone was invented in 1973 by Motorola. On April 3, 1973, Motorola engineer Martin Cooper made the first-ever cell phone call on the DynaTAC 8000X. The prototype he used weighed 2.4 lb (1.1 kg) and measured 9.1 x 5.1 x 1.8 in (23 x 13 x 4.5 cm).
     
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  6. Martin Cooper | Biography, Inventions, & Facts

    WEBMartin Cooper, American engineer who led the team that in 1972–73 built the first mobile cell phone, the DynaTAC (Dynamic Adaptive Total Area Coverage), and made the first cell phone call, on April 3, 1973. He is …

  7. The First Cell Phone: A Complete Phone History from …

    WEBJan 20, 2022 · Learn how the first cell phone was invented by Motorola in 1973 and how it evolved over the decades. Discover the milestones and innovations of cell phone technology, from wireless telephones in trains …

  8. History of mobile phones - Wikipedia

  9. The History Behind the Invention of the First Cell Phone

    WEBApr 3, 2023 · Learn how Motorola's Martin Cooper beat AT&T to the patent office and created the first handheld cell phone in 1973. Discover the key developments and challenges that led to the modern mobile phone …

  10. From 'the Brick' to the iPhone, the Cellphone …

    WEBApr 3, 2023 · Learn how the cellphone evolved from World War II radios to a personal device that transformed communication. Discover the inventors, innovations and challenges that shaped the history of mobile technology.

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  13. The History of Cellular Phones - ThoughtCo

    WEBJan 13, 2020 · Learn how cellular phones evolved from crude car phones to portable handsets. Dr. Martin Cooper, a former general manager for Motorola, is considered the inventor of the first modern portable handset …

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