In February 1920, DGA merged its light bulb manufacturing with that of Allgemeine Elektrizitäts-Gesellschaft (AEG) and Siemens & Halske and they became limited partners under OSRAM G.m.b.H. KG; the start of the business year was dated retroactively to 1 July 1919.
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Riehl, Nikolaus and Frederick Seitz Stalin’s Captive: Nikolaus Riehl and the Soviet Race for the Bomb (American Chemical Society and the Chemical Heritage Foundations, 1996) ISBN 0-8412-3310-1
It remained as part of the Rutland estate until 1911 when the 8th Duke of Rutland sold it to the German-Jewish banker and science entrepreneur Leopold Koppel.
Leopold II of Belgium | Leopold Stokowski | Ted Koppel | Léopold Sédar Senghor | Leopold II | Leopold I, Holy Roman Emperor | Leopold I of Belgium | Leopold Auer | Leopold III of Belgium | Order of Leopold | Leopold Mozart | Leopold II, Holy Roman Emperor | Leopold I | Leopold Bloom | Leopold von Ranke | Leopold III, Duke of Austria | Leopold | Aldo Leopold | Order of Leopold (Belgium) | Leopold Zunz | Orenstein & Koppel | Leopold Wenzel | Leopold, Victoria | Leopold Kronecker | Leopold Hager | Jason Leopold | Archduke Leopold Wilhelm of Austria | Order of Leopold (Austria) | Leopold von Sacher-Masoch | Leopold Moczygemba |