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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
Filing date
Publication date
Priority claimed from DE2346740Aexternal-prioritypatent/DE2346740B2/en
Application filed by Bergwerksverband GmbHfiledCriticalBergwerksverband GmbH
Application grantedgrantedCritical
Publication of AU7331274ApublicationCriticalpatent/AU7331274A/en
Publication of AU487189B2publicationCriticalpatent/AU487189B2/en