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.)
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Publication date
Priority claimed from IN310/DEL/87Aexternal-prioritypatent/IN171345B/en
Application filed by Uop IncfiledCriticalUop Inc
Priority to IN392DE1990priorityCriticalpatent/IN178236B/en
Publication of IN178236BpublicationCriticalpatent/IN178236B/en