Calculate 2015+11
IF 1034+24=425 and 1234-32=1621 THEN 2015+11=?Correct answers: 29
The first user who solved this task is Sanja Šabović.
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AddressographIn 1896, the first U.S. patent for an addressing machine, the Addressograph (No. 558,936) was issued to J.S. Duncan of Sioux City, Iowa developed from the invention he made in 1892. His earlier model consisted of a hexagonal wood block upon which was glued rubber type torn from rubber stamps. While revolving, the block simultaneously inked the next name and address ready for the next impression. The "Baby O" model was put into production 26 Jul 1893 in a small back room of the old Caxton Building in Chicago, Ill. |