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 Calgon CorpfiledCriticalCalgon Corp
Priority to IE87079ApriorityCriticalpatent/IE790870L/en
Publication of IE790870LpublicationCriticalpatent/IE790870L/en