Meanwhile, Alexander Graham Bell was working on the same idea and in 1876 the patent for the telephone was given to him.

与此同时，亚历山大·格雷厄姆·贝尔也在研究同样的想法。1876年，他获得了电话的专利。

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The Philadelphia exhibition also included Alexander Graham Bell's telephone, Heinz ketchup and the Remington typewriter.

VOA: special.2011.08.01

Not since Johannes Gutenberg invented the printing press, or Alexander Graham Bell the telephone, has a human invention empowered so many and offered so much possibility for benefiting humankind.

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