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 Henri ColleaufiledCriticalHenri Colleau
Priority to BE600122ApriorityCriticalpatent/BE600122A/fr
Publication of BE600122ApublicationCriticalpatent/BE600122A/fr