For what does the world owe Almon Strowger a debt of gratitude?
A. Parking Meters
B. Vending Machines
C. Automatic Telephone Exchanges
D. Traffic Lights
Answer: Option C
Solution(By Examveda Team)
He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work.This Question Belongs to General Knowledge >> Inventions
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