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Priority to ES35162ApriorityCriticalpatent/ES35162A1/es
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ES35162A1904-12-141904-12-14Mejoras en los procedimientos y en las máquinas que se emplean en la fabricación de seda, crin y paja artificiales.
ExpiredES35162A1
(es)
Un procedimiento para el lavado y para la eliminación rápida y completa del cobre, de la seda artificial, de la crin artificial y de las materias plásticas de celulosa.