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.)
Consolidation Coal Co
Original Assignee
Consolidation Coal Co
Filing date
Publication of AU493999B2publicationCriticalpatent/AU493999B2/en
Priority claimed from US05/554,535external-prioritypatent/US3995905A/en
Application filed by Consolidation Coal CofiledCriticalConsolidation Coal Co
Publication of AU1157476ApublicationCriticalpatent/AU1157476A/en