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 Joseph Marie Julien SauvagefiledCriticalJoseph Marie Julien Sauvage
Priority to BE577882ApriorityCriticalpatent/BE577882A/en
Publication of BE577882ApublicationCriticalpatent/BE577882A/en