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 Herbert Brandt, Karl CottinfiledCriticalHerbert Brandt
Priority to DD19460376ApriorityCriticalpatent/DD129746A2/en
Publication of DD129746A2publicationCriticalpatent/DD129746A2/en