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Priority to ES22902ApriorityCriticalpatent/ES22902A1/es
Publication of ES22902A1publicationCriticalpatent/ES22902A1/es
ES22902A1898-07-231898-07-23Un aparato para la producción de acetileno con regulación automática y caja de carburo de fácil cambio.
ExpiredES22902A1
(es)