Waldo Semon Scientist

Waldo Lonsbury Semon (September 10, 1898 – May 26, 1999) was a renowned American inventor born in Demopolis, Alabama. He is credited with inventing methods for making polyvinyl chloride useful.

Personal facts

Birth dateSeptember 10, 1898
Birth place
Demopolis Alabama
Nationality
United States
Date of deathMay 26, 1999
Education
University of Washington
Known for
Polyvinyl chloride

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