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Application filed by Hans Kreidel, Hans Dr KreidelfiledCriticalHans Kreidel
Priority to FI158068ApriorityCriticalpatent/FI49348C/sv
Publication of FI49348BpublicationCriticalpatent/FI49348B/fi
Application grantedgrantedCritical
Publication of FI49348CpublicationCriticalpatent/FI49348C/sv