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Application filed by Spoldzielnia Pracy SkalafiledCriticalSpoldzielnia Pracy Skala
Priority to PL27223788ApriorityCriticalpatent/PL154959B1/en
Publication of PL272237A1publicationCriticalpatent/PL272237A1/en
Publication of PL154959B1publicationCriticalpatent/PL154959B1/en