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![Wireless - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_31.jpeg)
Wireless - Wikipedia, the free encyclopedia
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日期:2024-07-16
The world's first wireless telephone conversation occurred in 1880, when Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone, a telephone that conducted audio conversations wirelessly over modulated light beams (which are...看更多