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 US06/668,102external-prioritypatent/US4623632A/en
Application filed by Uop IncfiledCriticalUop Inc
Priority to IN823/DEL/86ApriorityCriticalpatent/IN167974B/en
Priority to IN753DE1989prioritypatent/IN176133B/en
Publication of IN167974BpublicationCriticalpatent/IN167974B/en