GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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For what does the world owe Almon Strowger a debt of gratitude?
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Parking Meters
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Vending Machines
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Automatic Telephone Exchanges
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Traffic Lights
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Explanation:
Detailed explanation-1: -He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work.
There is 1 question to complete.