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Application filed by Kalervo Artturi Rinne, Antti Marjamaeki, Juhani SalamafiledCriticalKalervo Artturi Rinne
Priority to FI852954ApriorityCriticalpatent/FI73831C/fi
Publication of FI852954A0publicationCriticalpatent/FI852954A0/fi
Publication of FI852954LpublicationCriticalpatent/FI852954L/fi
Publication of FI73831BpublicationCriticalpatent/FI73831B/fi
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Publication of FI73831CpublicationCriticalpatent/FI73831C/fi