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Application filed by Hans Arne Valentin JohanssonfiledCriticalHans Arne Valentin Johansson
Priority to FI753280ApriorityCriticalpatent/FI62461C/fi
Publication of FI753280A7publicationCriticalpatent/FI753280A7/fi
Application grantedgrantedCritical
Publication of FI62461BpublicationCriticalpatent/FI62461B/fi
Publication of FI62461CpublicationCriticalpatent/FI62461C/fi