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Application filed by Pauli Juhani OjalafiledCriticalPauli Juhani Ojala
Priority to FI751042ApriorityCriticalpatent/FI52032C/fi
Publication of FI751042A7publicationCriticalpatent/FI751042A7/fi
Application grantedgrantedCritical
Publication of FI52032BpublicationCriticalpatent/FI52032B/fi
Publication of FI52032CpublicationCriticalpatent/FI52032C/fi