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file:///H:/PR%C3%80CTIQUES%20SENSE%20ACABAR/pierina/Alexander_Graham_Bell.htm#Tel.C3.A8fon
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file:///H:/PR%C3%80CTIQUES%20SENSE%20ACABAR/pierina/Karl_Benz.htm http://www.taringa.net/posts/ciencia-educacion/11364205/_Quien-invento-el-primer-coche-del-mundo_.html
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