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
Priority claimed from US525967Aexternal-prioritypatent/US2879209A/en
Priority claimed from AT463558Aexternal-prioritypatent/AT208173B/de
Application filed by Camin LabfiledCriticalCamin Lab
Publication of BE573665ApublicationCriticalpatent/BE573665A/fr