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Filing date
Publication date
Application filed by Esko Nissinen, Helmut SickelfiledCriticalEsko Nissinen
Priority to FI12070ApriorityCriticalpatent/FI43726B/fi
Priority to DE19702029363prioritypatent/DE2029363A1/de
Priority to SE44871Aprioritypatent/SE363968B/xx
Application grantedgrantedCritical
Publication of FI43726BpublicationCriticalpatent/FI43726B/fi