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 ES1859001844ApriorityCriticalpatent/ES1844H1/es
Publication of ES1844H1publicationCriticalpatent/ES1844H1/es
ES1859001844A1859-02-101859-02-10Procedimiento quimico para purificar aceites hidrocarburos de la brea de la hulla y poder utilizarlos en alumbrado.
ExpiredES1844H1
(es)