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 George William Thomas Kennifor, Judith Ann Constance KennifordfiledCriticalGeorge William Thomas Kennifor
Publication of ZA973202BpublicationCriticalpatent/ZA973202B/en