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Priority to PL28636290ApriorityCriticalpatent/PL286362A1/en
Publication of PL286362A1publicationCriticalpatent/PL286362A1/en
PL28636290A1990-08-031990-08-03Method of manufacturing moulds for the production of styrofoam elements, mould for the production of styrofoam elements
PL286362A1
(en)