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Application filed by Heikki KarppinenfiledCriticalHeikki Karppinen
Priority to FI874120ApriorityCriticalpatent/FI77608C/en
Publication of FI874120A0publicationCriticalpatent/FI874120A0/en
Publication of FI77608BpublicationCriticalpatent/FI77608B/en
Application grantedgrantedCritical
Publication of FI77608CpublicationCriticalpatent/FI77608C/en
SAETT ATT LUFTA MELLANOERAT MEDELST EN I OERATS TRUMHINNA APPLICERBAR VENTILATIONSTUB, VENTILATIONSTUB FOER UTFOERANDE AV SAETTET JAEMTE ANVAENDNING AV EN DYLIK VENTILATIONSTUB.