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R Oyarzun Y Cia
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R Oyarzun Y Cia
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Priority to ES137027ApriorityCriticalpatent/ES137027A1/es
Publication of ES137027A1publicationCriticalpatent/ES137027A1/es
ES137027A1935-01-311935-01-31Un dispositivo aplicable en las cafeteras que permite reducir la temperatura del agua que sale de la caldera.
ExpiredES137027A1
(es)