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Application filed by Asko Upo OyfiledCriticalAsko Upo Oy
Priority to FI1131/74ApriorityCriticalpatent/FI53809C/fi
Publication of FI113174A7publicationCriticalpatent/FI113174A7/fi
Application grantedgrantedCritical
Publication of FI53809BpublicationCriticalpatent/FI53809B/fi
Publication of FI53809CpublicationCriticalpatent/FI53809C/fi