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| X |
ID X, no need to ID Y and Z
X is Elisha Gray and Y is Alexander Graham Bell and Z is of course the telephone
For those who answered for only Y , sorry you get no points
and @ rishwin dont worry you'll get your chance....
Cracked by Pranav, Arpit, GIM Quizzing, Nanda, Indian, Aditya & Krishna prasad













































