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.)
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Donald Walter Clark
Original Assignee
Donald Walter Clark
Filing date
Publication date
Application filed by Donald Walter ClarkfiledCriticalDonald Walter Clark
Application grantedgrantedCritical
Publication of AU279556B2publicationCriticalpatent/AU279556B2/en
Publication of AU3103863ApublicationCriticalpatent/AU3103863A/en