සොයාගැනීම් සහ සොයාගත් පුද්ගලයින් - Inventions & Inventors
Gottlieb Daimler
Motorcycle
1885 Germany
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Zacharias Janssen
Microscope
Netherlands 1595
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Alexander Graham Bell
Microphone
USA 1876
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Gordon Moore & Robert Noyce
Micro Processor
USA 1971...