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 Henri Othon Kratz-BoussacfiledCriticalHenri Othon Kratz-Boussac
Application grantedgrantedCritical
Publication of AT4650BpublicationCriticalpatent/AT4650B/de