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.)
Ernest Alfred Williamson
Original Assignee
Ernest Alfred Williamson
Filing date
Publication date
Application filed by Ernest Alfred WilliamsonfiledCriticalErnest Alfred Williamson
Application grantedgrantedCritical
Publication of AU1607153ApublicationCriticalpatent/AU1607153A/en
Publication of AU158213B2publicationCriticalpatent/AU158213B2/en