| Date of Birth | 10-September-1898 | |
| Place of Birth |
Demopolis (Marengo County, Alabama, United States of America) |
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| Nationality | United States of America | |
| Profession | Inventor | |
| Waldo Lonsbury Semon was a renowned American inventor born in Demopolis, Alabama. He is credited with inventing methods for making polyvinyl chloride useful. | ||
Awards by Waldo Semon |
| Check all the awards nominated and won by Waldo Semon. |
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