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Individual
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Individual
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Priority to ES54259ApriorityCriticalpatent/ES54259A3/es
Publication of ES54259A3publicationCriticalpatent/ES54259A3/es
ES54259A1912-11-121912-11-12Un procedimiento para la fabricación de rollos de papel perforado para aparatos neumáticos para tocar el piano.
ExpiredES54259A3
(es)