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.)
Deutsche Gold-Und Silber-Scheideanstalt V R
Evonik Operations GmbH
Original Assignee
Deutsche Gold-Und Silber-Scheideanstalt V R
Degussa GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19752521581external-prioritypatent/DE2521581C3/de
Priority claimed from DE19752521582external-prioritypatent/DE2521582C3/de
Application filed by Deutsche Gold-Und Silber-Scheideanstalt V R, Degussa GmbHfiledCriticalDeutsche Gold-Und Silber-Scheideanstalt V R
Publication of ES447606A1publicationCriticalpatent/ES447606A1/es