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Priority claimed from FI823981Aexternal-prioritypatent/FI73005C/fi
Priority claimed from SE8206846Aexternal-prioritypatent/SE458472B/sv
Application filed by Lumalampan AbfiledCriticalLumalampan Ab
Publication of FI834237A0publicationCriticalpatent/FI834237A0/fi
Publication of FI834237ApublicationCriticalpatent/FI834237A/fi
Application grantedgrantedCritical
Publication of FI74795BpublicationCriticalpatent/FI74795B/fi
Publication of FI74795CpublicationCriticalpatent/FI74795C/fi