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Application filed by Ari Olavi Tammenlaakso, Jouko Kalervo TammenlaaksofiledCriticalAri Olavi Tammenlaakso
Priority to FI1218/74ApriorityCriticalpatent/FI55488C/fi
Publication of FI121874A7publicationCriticalpatent/FI121874A7/fi
Publication of FI55488BpublicationCriticalpatent/FI55488B/fi
Application grantedgrantedCritical
Publication of FI55488CpublicationCriticalpatent/FI55488C/fi