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What contribution did alexander graham bell make to industrial growth in us?
1)he invested large amounts of money to do transcontinental railroad,
2)he used his wealth to improve the lightbulb, he invented the beast he invested large amounts of money to do transcontinental railroad,
3)he used his wealth to improve the lightbulb,
4)he invented the bessemer process, he patented the telephone
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What contribution did alexander graham bell make to industrial growth in us?
1)he invested l...
1)he invested l...
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