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Application filed by Toivo Pertti Antero SarkafiledCriticalToivo Pertti Antero Sarka
Priority to FI760867ApriorityCriticalpatent/FI56735C/fi
Publication of FI760867A7publicationCriticalpatent/FI760867A7/fi
Application grantedgrantedCritical
Publication of FI56735BpublicationCriticalpatent/FI56735B/fi
Publication of FI56735CpublicationCriticalpatent/FI56735C/fi