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 Milan KudrlefiledCriticalMilan Kudrle
Priority to CS796775ApriorityCriticalpatent/CS180329B1/cs
Publication of CS180329B1publicationCriticalpatent/CS180329B1/cs
CS796775A1975-11-251975-11-25Method for produce of segments with holes on both face sides,separated by rigid barrier,and device for its produce
CS180329B1
(en)