Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES233827ApriorityCriticalpatent/ES233827A1/es
Publication of ES233827A1publicationCriticalpatent/ES233827A1/es
ES233827A1957-02-221957-02-22Procedimiento e instalación para la clarificación mecánica-biológica de las aguas sucias de ciudades o similares
ExpiredES233827A1
(es)