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 Ammonia Casale Sa, Zardi UmbertofiledCriticalAmmonia Casale Sa
Priority to IN175MA1990priorityCriticalpatent/IN173696B/en
Publication of IN173696BpublicationCriticalpatent/IN173696B/en
