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Application filed by Hannu Olavi KaehoenenfiledCriticalHannu Olavi Kaehoenen
Priority to FI912449ApriorityCriticalpatent/FI88669C/fi
Publication of FI912449A0publicationCriticalpatent/FI912449A0/fi
Publication of FI912449ApublicationCriticalpatent/FI912449A/fi
Publication of FI88669BpublicationCriticalpatent/FI88669B/fi
Application grantedgrantedCritical
Publication of FI88669CpublicationCriticalpatent/FI88669C/fi