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![History of mobile phones - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_49.jpeg)
History of mobile phones - Wikipedia, the free encyclopedia
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日期:2024-07-17
The history focuses on communication devices which connect wirelessly to the public switched telephone network. The transmission of speech by radio has a long and varied history going back to Reginald Fessenden's ......看更多