1876 Invention of the four-stroke internal combustion engine by Nikolaus Otto ( 1832-1891 )
Invention of the Thomas-Birne for producing steel and the extraction of phosphate fertil-izers by Sidney Gilchrist Thomas ( 1850-1885 )
1879 Invention of the carbon filament lightbulb by Thomas Alva Edison ( 1847-1931 )
www.wir-rheinlaender.lvr.de1876 Erfindung des Viertakt-Verbrennungsmotors durch Nikolaus Otto ( 1832-1891 )
Erfindung der Thomas-Birne zur Stahlerzeugung und Phosphatdüngergewinnung, durch Sidney Gilchrist Thomas ( 1850-1885 )
1879 Erfindung der Kohlenfaden-Glühlampe durch Thomas Alva Edison ( 1847-1931 )
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