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.)
Heidelberg Materials AG
Original Assignee
Portland Zementwerke Heidelberg AG
Filing date
Publication date
Application filed by Portland Zementwerke Heidelberg AGfiledCriticalPortland Zementwerke Heidelberg AG
Application grantedgrantedCritical
Publication of AU648455ApublicationCriticalpatent/AU648455A/en
Publication of AU206212B2publicationCriticalpatent/AU206212B2/en