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Application filed by Veikko Ilmari JanhonenfiledCriticalVeikko Ilmari Janhonen
Priority to FI830885ApriorityCriticalpatent/FI65591C/en
Publication of FI830885A0publicationCriticalpatent/FI830885A0/en
Application grantedgrantedCritical
Publication of FI65591BpublicationCriticalpatent/FI65591B/en
Publication of FI65591CpublicationCriticalpatent/FI65591C/en