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Alexander Graham Bell Biography
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Alexander Graham Bell 1847 - 1922 Alexander Graham Bell was an inventor and engineer who is credited with inventing the first practical telephone. See a related article at All content is either in the public domain or licensed pursuant to a Creative Commons Attribution License Attribution:

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The youtube video often pauses even if the device moves an inch
loved these videos.....n yes we should try to beat the poverty...
pls make all this videos in hindi also....its better to understand properply. Thank u all
please make videos in hindi ....its better to understand p5
youtube videos r not playing properly. kindly dont upload such videos
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