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 Renming ChengfiledCriticalRenming Cheng
Priority to NO971155ApriorityCriticalpatent/NO971155D0/no
Publication of NO971155D0publicationCriticalpatent/NO971155D0/no