Rolla Neil Harger
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Rolla Neil Harger (January 14, 1890 – August 8, 1983) was an American biochemist. He invented an early breathalyzer, called the Drunkometer, to test for driving under the influence in 1931; he was awarded the patent in 1936.[1][2] He was biochemistry and pharmacology department chairman of the Indiana University School of Medicine from 1933 to 1956 and worked as a professor in the department of biochemistry and toxicology from 1922 to 1960.[1]
