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Application filed by Ryszard Wojcik, Anna WojcikfiledCriticalRyszard Wojcik
Priority to FI882440ApriorityCriticalpatent/FI882440A/en
Publication of FI882440A0publicationCriticalpatent/FI882440A0/en
Publication of FI882440ApublicationCriticalpatent/FI882440A/en