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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Casel Robert
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Casel Robert
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Application filed by Casel RobertfiledCriticalCasel Robert
Priority to ES87889ApriorityCriticalpatent/ES87889A3/es
Publication of ES87889A3publicationCriticalpatent/ES87889A3/es
ES87889A1924-01-031924-01-03Un procedimiento industrial consistente en la fabricación de tubos de descarga eléctrica en gases rarificados.
ExpiredES87889A3
(es)