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Application filed by Aimo Kaarlo ToppinenfiledCriticalAimo Kaarlo Toppinen
Priority to FI750201ApriorityCriticalpatent/FI50579C/fi
Application grantedgrantedCritical
Publication of FI50579BpublicationCriticalpatent/FI50579B/fi
Publication of FI50579CpublicationCriticalpatent/FI50579C/fi