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Application filed by Reino Vilhelm ParkkinenfiledCriticalReino Vilhelm Parkkinen
Priority to FI940420UpriorityCriticalpatent/FI1715U1/fi
Publication of FIU940420U0publicationCriticalpatent/FIU940420U0/fi
Application grantedgrantedCritical
Publication of FI1715U1publicationCriticalpatent/FI1715U1/fi