William Duncan McNally (July 8, 1882 – June 29, 1961) was the chief chemist in the Cook County Department of Public Health and the chief chemist for the Cook County Medical Examiner's office. He invented an early breathalyzer in 1927.
Born |
8 July 1882
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Died |
29 June 1961 (aged 78)
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Zodiac | Cancer |
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