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 Akad Gorniczo HutniczafiledCriticalAkad Gorniczo Hutnicza
Priority to PL27468188ApriorityCriticalpatent/PL161166B1/en
Publication of PL274681A1publicationCriticalpatent/PL274681A1/en
Publication of PL161166B1publicationCriticalpatent/PL161166B1/en