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 B P Budown Przemyslo KopalnfiledCriticalB P Budown Przemyslo Kopaln
Priority to PL25743286ApriorityCriticalpatent/PL141477B2/en
Publication of PL257432A2publicationCriticalpatent/PL257432A2/en
Publication of PL141477B2publicationCriticalpatent/PL141477B2/en