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 Bataafsche PetroleumfiledCriticalBataafsche Petroleum
Priority to BE523146ApriorityCriticalpatent/BE523146A/en
Publication of BE523146ApublicationCriticalpatent/BE523146A/en