“Sources for a History of Navarrese Tecnology in the Spanish Patent and Trademark Office: The Patent Files (1878-1939)”. Huarte de San Juan. Geografía e Historia, no. 16 (April 19, 2009): 165–205. Accessed June 5, 2026. https://revista-hsj-historia.unavarra.es/HSJ-Historia/article/view/3473.