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Priority to ES60382ApriorityCriticalpatent/ES60382A3/es
Publication of ES60382A3publicationCriticalpatent/ES60382A3/es
ES60382A1915-05-181915-05-18Un procedimiento para la fabricación de musgo de caucho, de gutapercha y de balata, vulcanizando en caliente.
ExpiredES60382A3
(es)