QUIZ #17

QUESTION OF THE DAY:

When X's partner Gardiner Greene Hubbard went to the Washington Patent Office in the year 1876 to get X's product patented, he was told that two more people ElishaGray and Y with the backing ofWestern Union were also aplying for the same patent. Later , of course, it was X who got the patent and its X who is credited with the invention.
Who are "X" and "Y" and what is the invention I'm talking about?



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