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Application filed by Boris SnickarsfiledCriticalBoris Snickars
Priority to FI801974ApriorityCriticalpatent/FI61941C/en
Publication of FI801974A7publicationCriticalpatent/FI801974A7/en
Application grantedgrantedCritical
Publication of FI61941BpublicationCriticalpatent/FI61941B/en
Publication of FI61941CpublicationCriticalpatent/FI61941C/en