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 Wolfgang Gaertner, Wolfgang RichterfiledCriticalWolfgang Gaertner
Priority to CS67676ApriorityCriticalpatent/CS186981B1/cs
Publication of CS186981B1publicationCriticalpatent/CS186981B1/cs