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Application filed by Dagobert Timar, Von Dreger KarlfiledCriticalDagobert Timar
Publication of CH48032ApublicationCriticalpatent/CH48032A/de
CH48032A1908-06-091909-05-03Bogenlampenanordnung mit parallelen, wenigstens annähernd horizontalen Kohlen, mit Vorrichtung zur Verhütung des Flackerns
CH48032A
(de)