Important Innovations and Discoveries
4 videos • 58 views • by VoltEdge Learning
1
Important Inventions and Discoveries - Invention of Gas Fire By. Deepak Varu ( In Gujarati )
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2
Invention of Electric Fan / How fan was invented? /Who invent electric fan? By. Deepak Varu
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3
How insulin was introduced to the world? | Invention of Insulin | Insulin discovery By. Deepak Varu
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4
Inventions: A Brief History of Escalator | Invention of Escalator By. Deepak Varu
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