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 Aerozon Fabrik G & B SternbergfiledCriticalAerozon Fabrik G & B Sternberg
Publication of CH77337ApublicationCriticalpatent/CH77337A/de