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
Priority claimed from NZ23367890Aexternal-prioritypatent/NZ233678A/en
Application filed by Thomas Caldwell CairnsfiledCriticalThomas Caldwell Cairns
Priority to NZ23451690ApriorityCriticalpatent/NZ234516A/en
Publication of NZ234516ApublicationCriticalpatent/NZ234516A/en