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Individual
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Individual
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Priority to ES37045ApriorityCriticalpatent/ES37045A1/es
Publication of ES37045A1publicationCriticalpatent/ES37045A1/es
ES37045A1905-10-311905-10-31Una disposición para producir automáticamente una contracorriente y una circulación de agua en las calderas de vapor.
ExpiredES37045A1
(es)