air conditioning (1 ene 1910 año – 1 ene 1920 año)

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!902 WIllis Carrier invented an air cooling "vent transverter'' to cool down on a hot Summer day! He thought his invention was smart and ideal, as soon as he figured out he could make the money out of his invention of technology started selling alot in Brooklyn, it was published with popularity in 1902 to 1910 to all the way to 1920's for all summer long with 20 years in the making or selling!!

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