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    Business Facts

    Posted By: Noruen

    World's #1 Quick Reference Guide: Business Facts
    BarCharts | 4 pages | PDF | 0,3 Mb



    In this guide you can find hundreds of interesting facts like these:

    1919: The pop-up toaster is invented by Charles Strite.
    1920: Detroit police officer William Potts refines Garrett Morgan’s invention of the traffic light by adding the yellow warning signal due to the increase in automobile traffic.
    1920: Earle Dickson invents the Band-Aid.
    1921: John Larson invents the modern lie detector (polygraph) test.


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    See also: Academic outline - Microbiology