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 Porzellanfabrik Hentschel & MufiledCriticalPorzellanfabrik Hentschel & Mu
Publication of CH52012ApublicationCriticalpatent/CH52012A/en