Carl Auer von Welsbach, Prof. Dr.
geb. 09/01/1858,
Wien,
Austria
gest. 08/04/1929,
Mölbling,
Austria
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Chemist, inventor, entrepreneur, discoverer of the four chemical elements neodymium, praseodymium, ytterbium and lutetium, inventor of the incandescent mantle in the gas light ("Auerlicht"), the metal filament lamp and the igniter ("Auermetall")