Carl Auer Freiherr von Welsbach, 1858 - 1929, an Austrian scientist and inventor,
Carl Auer Freiherr von Welsbach, 1858 - 1929, an Austrian scientist and inventor, Carl Freiherr Auer von Welsbach, 1858 - 1929, ein österreichischer Chemiker und Unternehmer
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