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Filing date
Publication date
Priority claimed from FI358272Aexternal-prioritypatent/FI50396C/sv
Application filed by Tyoetehoseura R YfiledCriticalTyoetehoseura R Y
Priority to FI105574ApriorityCriticalpatent/FI50495C/sv
Priority to DE2428733Aprioritypatent/DE2428733A1/de
Application grantedgrantedCritical
Publication of FI50495BpublicationCriticalpatent/FI50495B/fi
Publication of FI50495CpublicationCriticalpatent/FI50495C/sv