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 US06/818,027external-prioritypatent/US4616074A/en
Application filed by Alco Chemical CorpfiledCriticalAlco Chemical Corp
Publication of ZA863987BpublicationCriticalpatent/ZA863987B/en