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Elfinar S A
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Elfinar S A
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Priority to ES334438ApriorityCriticalpatent/ES334438A3/es
Publication of ES334438A3publicationCriticalpatent/ES334438A3/es
Perfeccionamientos en la constitución de las máquinas de carda de hilatura de fibras textiles y variador continuo y progresivo de la velocidad, con mando exterior