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
AU21180/56A
Inventor
Stanley Searles and Nicholas Dare John
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.)
D Gordon Griffiths Engineers) Ltd
Original Assignee
D Gordon Griffiths Engineers) Ltd
Filing date
Publication of AU217222B2publicationCriticalpatent/AU217222B2/en
Application filed by D Gordon Griffiths Engineers) LtdfiledCriticalD Gordon Griffiths Engineers) Ltd