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.)
E Usco Derrick A Equipment Co
Original Assignee
E Usco Derrick A Equipment Co
Filing date
Publication date
Application filed by E Usco Derrick A Equipment CofiledCriticalE Usco Derrick A Equipment Co
Application grantedgrantedCritical
Publication of AU278737ApublicationCriticalpatent/AU278737A/en
Publication of AU103729B2publicationCriticalpatent/AU103729B2/en