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Application filed by Fredrik Kullervo BurmeisterfiledCriticalFredrik Kullervo Burmeister
Priority to FI830777ApriorityCriticalpatent/FI70544C/en
Publication of FI830777A0publicationCriticalpatent/FI830777A0/en
Publication of FI830777LpublicationCriticalpatent/FI830777L/en
Application grantedgrantedCritical
Publication of FI70544BpublicationCriticalpatent/FI70544B/en
Publication of FI70544CpublicationCriticalpatent/FI70544C/en