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 Cie Pr La Fabrication Des CompfiledCriticalCie Pr La Fabrication Des Comp
Application grantedgrantedCritical
Publication of AT193987BpublicationCriticalpatent/AT193987B/de