Neuerungen an Apparaten zur Erhöhung der Leuchtkraft und Reinheit der Kohlenflammen und Leuchtgasflammen

Spong, James Osborn

Austrian Patent Office

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Technological Inventions 1850 - 1899

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Contents: Neuerungen an Apparaten zur Erhöhung der Leuchtkraft und Reinheit der Kohlenflammen und Leuchtgasflammen

Neuerungen an Apparaten zur Erhöhung der Leuchtkraft und Reinheit der Kohlenflammen und Leuchtgasflammen
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