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Application filed by Arvi Henrikki MaekelaefiledCriticalArvi Henrikki Maekelae
Priority to FI28074ApriorityCriticalpatent/FI58190C/fi
Publication of FI740280A0publicationCriticalpatent/FI740280A0/fi
Publication of FI58190BpublicationCriticalpatent/FI58190B/fi
Application grantedgrantedCritical
Publication of FI58190CpublicationCriticalpatent/FI58190C/fi