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 - Lifetime
Application number
AU1494/54A
Inventor
Ernest Rolph Walter
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.)
Ronald Trist and Co Ltd
Original Assignee
Ronald Trist and Co Ltd
Filing date
Publication of AU200104B2publicationCriticalpatent/AU200104B2/en
Application filed by Ronald Trist and Co LtdfiledCriticalRonald Trist and Co Ltd