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 Rolf ToernkvistfiledCriticalRolf Toernkvist
Priority to FI750052ApriorityCriticalpatent/FI51990C/fi
Priority to GB377275Aprioritypatent/GB1473428A/en
Priority to SE7500995Aprioritypatent/SE401719B/xx
Priority to DE19752504330prioritypatent/DE2504330A1/de
Priority to JP50015224Aprioritypatent/JPS50127034A/ja
Priority to US05/696,821prioritypatent/US4036563A/en
Publication of FI750052A7publicationCriticalpatent/FI750052A7/fi
Application grantedgrantedCritical
Publication of FI51990BpublicationCriticalpatent/FI51990B/fi
Publication of FI51990CpublicationCriticalpatent/FI51990C/fi