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.)
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Publication date
Application filed by Karel SkrdlantfiledCriticalKarel Skrdlant
Priority to CS437374ApriorityCriticalpatent/CS176538B1/cs
Priority to CS437274Aprioritypatent/CS182377B3/en
Publication of CS182377B3publicationCriticalpatent/CS182377B3/en