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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
Publication date
Priority to ES0161092ApriorityCriticalpatent/ES161092A2/es
Publication of ES161092A2publicationCriticalpatent/ES161092A2/es
Perfeccionamientos introducidos en los electrodos caracterizados por contener éstos wolfram metálico o una aleación de wolfram o de concreción de wolfram
ES0161092AMEJORAS INTRODUCIDAS EN EL OBJETO DE PATENTE PRINCIPAL NuMERO 161045. .
ExpiredES161092A2
(es)