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 Hubert Mossay Paul Alphonse, Edward Jacoby Henry CharlesfiledCriticalHubert Mossay Paul Alphonse
Publication of CH81522ApublicationCriticalpatent/CH81522A/en