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.)
Expired
Application number
AU39801/72A
Inventor
HANS MATHIAS OTTO GROSSENBACK GUNTER VOIGT HORST KURAPTAT and DR. GUITAR BRACHT FRITZ GOTZA
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.)
RAG AG
Original Assignee
Ruhrkohle AG
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 DE19712145293external-prioritypatent/DE2145293A1/en
Priority claimed from DE19712145292external-prioritypatent/DE2145292A1/en
Priority claimed from DE19722205796external-prioritypatent/DE2205796A1/en
Application filed by Ruhrkohle AGfiledCriticalRuhrkohle AG
Publication of AU3980172ApublicationCriticalpatent/AU3980172A/en