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 Jan HunkafiledCriticalJan Hunka
Priority to CS874833ApriorityCriticalpatent/CS261285B1/cs
Publication of CS483387A1publicationCriticalpatent/CS483387A1/cs
Publication of CS261285B1publicationCriticalpatent/CS261285B1/cs