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 Roland GullbergfiledCriticalRoland Gullberg
Priority to SE7513968ApriorityCriticalpatent/SE7513968L/xx
Priority to FI763554Aprioritypatent/FI763554A7/fi
Priority to NO764207Aprioritypatent/NO764207L/no
Priority to GB51981/76Aprioritypatent/GB1535437A/en
Publication of SE7513968LpublicationCriticalpatent/SE7513968L/xx