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 Petrus Augustinus Van OrbeekfiledCriticalPetrus Augustinus Van Orbeek
Priority to BE600138ApriorityCriticalpatent/BE600138A/nl
Publication of BE600138ApublicationCriticalpatent/BE600138A/nl