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 Stroemberg Oy AbfiledCriticalStroemberg Oy Ab
Priority to FI118171ApriorityCriticalpatent/FI45916C/sv
Priority to SE7112846Aprioritypatent/SE7112846L/xx
Priority to DE2150798Aprioritypatent/DE2150798C3/de
Priority to NO3774/71Aprioritypatent/NO131565C/no
Application grantedgrantedCritical
Publication of FI45916BpublicationCriticalpatent/FI45916B/fi
Publication of FI45916CpublicationCriticalpatent/FI45916C/sv