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 Josef BoudafiledCriticalJosef Bouda
Priority to BE583846ApriorityCriticalpatent/BE583846A/en
Publication of BE583846ApublicationCriticalpatent/BE583846A/en