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.)
Robert Grierson Howard
Original Assignee
Robert Grierson Howard
Filing date
Publication date
Application grantedgrantedCritical
Publication of AU138326B2publicationCriticalpatent/AU138326B2/en
Publication of AU901846ApublicationCriticalpatent/AU901846A/en
Application filed by Robert Grierson HowardfiledCriticalRobert Grierson Howard