What George Westinghouse invented?

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What George Westinghouse invented?

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1) What toy did George Lerner create for Hasbro company in 1952?

2) When was the first lawn mower invented?

3) What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?

4) When was the first elevator built?

5) Who had an explosive idea and first patented DYNAMITE?

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