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 Robert GeismarfiledCriticalRobert Geismar
Priority to BE602305ApriorityCriticalpatent/BE602305A/fr
Publication of BE602305ApublicationCriticalpatent/BE602305A/fr