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結果 : what was the best invention of the 20th century
13:16

Top 10 Inventions of the 20th Century

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7:46

What Are the Most Important Inventions of the 20th Century?

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17:34

The Most Important Invention of the 20th Century: Transistors

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43:32

World's Greatest Inventions

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15 Accidental Inventions You Can't Imagine Your Life Without

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16:53

MOSFET – The Most significant invention of the 20th Century

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5:57

Top 10 Inventions of All Time

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2:02

The Most Important Invention of the 20th Century

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The greatest invention of the 20th century

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20 Inventions That Changed The World!

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5 Greatest Invention in 20th Century

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Top 10 Inventions in Human History

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1:49

The Most Important Invention of the 20th Century - Intel Microprocessor

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TOP 3 INVENTIONS of All Time | History's Greatest of All Time with Peyton Manning (S1)

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6:42

The 71 Most AMAZING Innovations of All Time

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Famous Scientists and their inventions | Inventors and their inventions Part-1

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The greatest invention of the 20th century

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American Inventors for Kids | Inventors Who Changed the World | Kids Academy

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1:14

Greatest Invention of the 20th Century

ZA Zaifee
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