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Application filed by Richard Efflinger, Johann Krenek, Rudolf LechnerfiledCriticalRichard Efflinger
Publication of CH58078ApublicationCriticalpatent/CH58078A/de
Mejoras en los dispositivos de producir la auto-presión y el encendido automático de estufas lámparas y demás aparatos similares de calefacción y alumbrado.