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Application filed by Johan Alfred Olof JohanssonfiledCriticalJohan Alfred Olof Johansson
Priority to FI752117ApriorityCriticalpatent/FI59014C/sv
Publication of FI752117ApublicationCriticalpatent/FI752117A/fi
Priority to FI803916Aprioritypatent/FI62936C/sv
Publication of FI59014BpublicationCriticalpatent/FI59014B/fi
Application grantedgrantedCritical
Publication of FI59014CpublicationCriticalpatent/FI59014C/sv