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Ges fur Elektrisches Licht M B H
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Ges fur Elektrisches Licht M B H
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Priority to ES47886ApriorityCriticalpatent/ES47886A1/es
Publication of ES47886A1publicationCriticalpatent/ES47886A1/es
Un procedimiento perfeccionado para la fabricación de filamentos metálicos para lámparas eléctricas incandescentes por medio del horno correspondiente.