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.)
Expired
Application number
AU21827/35A
Inventor
William Healey Frederick
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 F Wilks & Co Ltd
Original Assignee
E F Wilks & Co Ltd
Filing date
Publication date
Application filed by E F Wilks & Co LtdfiledCriticalE F Wilks & Co Ltd
Publication of AU2182735ApublicationCriticalpatent/AU2182735A/en