When was the voting machine invented?
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Who invented Radio?
Guglielmo Marconi, an Italian invetor invented Radio in 1890's.
Who invented ECG?
What did Sir William Herschel discover in 1800?
Sir William Herschel discovered Infra-red radiation in 1800.
Magic Marker was invented by _______.
Who invented FM radio?
Who Invented Internet Protocol?
What is the name of the most advance reading machine for visually challenged developed by CSIR?
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