Thomas Elkins Black Inventor - 搜索图片

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An improved refrigerator design was patented by Afric…
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Thomas Elkins | The Black Inve…
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African-American inventor, Thoma…
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youtube.com > TeachNBLK History
Thomas Elkins | Black Inventor | Pharmacist | Surgeon
YouTube · TeachNBLK History · 215 次播放 · 2021年7月17日
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Learn More About Inventer Thoma…
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His “Cool” Invention Forever Changed Ameri…

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Thomas Elkins – Inventor of modern toilet and an Improved R…
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YouTube > The Black Excellence and Abundance Channel
Thomas Elkins / Did You Know a Black Man Invented the Toilet?
YouTube · The Black Excellence and Abundance Channel · 5983 次播放 · 2019年7月27日
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T. Elkins: Chamber Com…
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Thomas Elkins: African American Inventor - YouTube

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