Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by R G GrahamfiledCriticalR G Graham
Priority to NZ19576180ApriorityCriticalpatent/NZ195761A/en
Priority to NZ19661981Aprioritypatent/NZ196619A/en
Priority to AU78123/81Aprioritypatent/AU7812381A/en
Publication of NZ195761ApublicationCriticalpatent/NZ195761A/en