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 B SinayfiledCriticalB Sinay
Priority to BE508745ApriorityCriticalpatent/BE508745A/fr
Publication of BE508745ApublicationCriticalpatent/BE508745A/fr