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.)
Percy William Powell
Original Assignee
Percy William Powell
Filing date
Publication date
Application filed by Percy William PowellfiledCriticalPercy William Powell
Application grantedgrantedCritical
Publication of AU149438B2publicationCriticalpatent/AU149438B2/en
Publication of AU205451ApublicationCriticalpatent/AU205451A/en