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 Umberto Zardi, Ammonia Casale SafiledCriticalUmberto Zardi
Priority to IN901MA1989priorityCriticalpatent/IN174736B/en
Publication of IN174736BpublicationCriticalpatent/IN174736B/en