3716General KnowledgeMedium
For what does the world owe Almon Strowger a debt of gratitude ?
AVending Machines
BAutomatic Telephone Exchanges
CNone of the above
DParking Meters
Correct answer
B. Automatic Telephone Exchanges
Explanation
He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work.