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
Application filed by Arvo LaitinenfiledCriticalArvo Laitinen
Priority to FI842950ApriorityCriticalpatent/FI71208C/en
Publication of FI842950A0publicationCriticalpatent/FI842950A0/en
Publication of FI842950LpublicationCriticalpatent/FI842950L/en
Publication of FI71208BpublicationCriticalpatent/FI71208B/en
Application grantedgrantedCritical
Publication of FI71208CpublicationCriticalpatent/FI71208C/en