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.)
Dr. nied habil. Werner Keil and Dr. Heinrich Schmitz Dr. Walter Grimme
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.)
Rheinpreussen AG fuer Bergbau und Chemie
Original Assignee
Rheinpreussen AG fuer Bergbau und Chemie
Filing date
Publication date
Application filed by Rheinpreussen AG fuer Bergbau und ChemiefiledCriticalRheinpreussen AG fuer Bergbau und Chemie
Application grantedgrantedCritical
Publication of AU724755ApublicationCriticalpatent/AU724755A/en
Publication of AU213038B2publicationCriticalpatent/AU213038B2/en