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Application filed by Pauli Juhani OjalafiledCriticalPauli Juhani Ojala
Priority to FI791102ApriorityCriticalpatent/FI58575C/en
Publication of FI791102A7publicationCriticalpatent/FI791102A7/en
Application grantedgrantedCritical
Publication of FI58575BpublicationCriticalpatent/FI58575B/en
Publication of FI58575CpublicationCriticalpatent/FI58575C/en