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Why was the electric traffic signal invented?
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Why was the electric traffic signal invented?
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Apr 22, 2021
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Why was the electric traffic signal invented?
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high-school
Martin Gjaldbaek
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Martin Gjaldbaek
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To prevent auto accidents from happening and to save gas because they were originally run by gas
Exort
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Apr 25, 2021
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Answer: to prevent accidents from happening
Step-by-step explanation:
Divyesh Kanzariya
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Apr 28, 2021
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Divyesh Kanzariya
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