character: Thomas Edison
topic: Competition with Tesla and Technological Innovation
grade: 9
subject: History
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character: Nikola Tesla
topic: Competition with Edison and Contributions to Technology
grade: 9
subject: History
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character: George Westinghouse
topic: Role in the Current Wars and Competition with Edison and Tesla
grade: 9
subject: History
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character: Henry Ford
topic: Influence of Edison and Tesla on Industrial Innovation
grade: 9
subject: History
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