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
Didier Engineering GmbH
Original Assignee
Bergwerksverband GmbH
Didier Engineering GmbH
Filing date
Publication date
Priority claimed from DE2336515Aexternal-prioritypatent/DE2336515C3/en
Application filed by Bergwerksverband GmbH, Didier Engineering GmbHfiledCriticalBergwerksverband GmbH
Application grantedgrantedCritical
Publication of AU488650B2publicationCriticalpatent/AU488650B2/en
Publication of AU7143574ApublicationCriticalpatent/AU7143574A/en