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Phone
Jan 02, 2018

Mobile phones, or cordless telephones, often called mobile phones, are originally just a communication tool, the early mobile phone is commonly known as a portable telephone terminal can be used in a wide range, the first was by the Bell Laboratory in the United States, made in 1940, the development of the battlefield portable telephone.

In the 1958, Soviet engineer Leonid Kupryanovic invented the Лк-1 mobile phone, and in 1973, Motorola engineer Martin Cupa of the United States invented the world's first commercial mobile phone. So far it has developed into the 4G era.


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