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 Frantisek Ing SkorepafiledCriticalFrantisek Ing Skorepa
Priority to CS8423ApriorityCriticalpatent/CS239859B1/en
Publication of CS2384A1publicationCriticalpatent/CS2384A1/en
Publication of CS239859B1publicationCriticalpatent/CS239859B1/en