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Priority claimed from FI883463Aexternal-prioritypatent/FI883463A/en
Application filed by Veikko IhatsufiledCriticalVeikko Ihatsu
Priority to FI893394ApriorityCriticalpatent/FI86281C/en
Publication of FI893394A0publicationCriticalpatent/FI893394A0/en
Publication of FI893394ApublicationCriticalpatent/FI893394A/en
Publication of FI86281BpublicationCriticalpatent/FI86281B/en
Application grantedgrantedCritical
Publication of FI86281CpublicationCriticalpatent/FI86281C/en