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 M H LorentsenfiledCriticalM H Lorentsen
Priority to SE7104462ApriorityCriticalpatent/SE346347C/xx
Priority to FI740/72Aprioritypatent/FI55702C/fi
Priority to DK164772AAprioritypatent/DK140604B/da
Publication of SE346347BpublicationCriticalpatent/SE346347B/xx
Publication of SE346347CpublicationCriticalpatent/SE346347C/xx