Calculate 1357+1919
If 8638+7542=664 and 5589+2468=872 then 1357+1919=?Correct answers: 39
The first user who solved this task is Allen Wager.
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Edison patentIn 1897, one of the various patents for a "Phonograph" was issued to Thomas Alva Edison (No.575151). It was one of several patents relating to his invention received by the patent office on 3 Dec 1890 that were issued on various dates between 27 Jun 1893 and 30 Sep 1898. |