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 GB7850349Aexternal-prioritypatent/GB2043741B/en
Priority claimed from US06/014,500external-prioritypatent/US4273868A/en
Application filed by Miles Lab, Roy Rich Services IncfiledCriticalMiles Lab
Publication of ZA797015BpublicationCriticalpatent/ZA797015B/en