Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI823981Aexternal-prioritypatent/FI73005C/sv
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/sv