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Publication of FI771462ApublicationCriticalpatent/FI771462A/fi
E05B63/00—Locks or fastenings with special structural characteristics
E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings
E05B63/042—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings constructed symmetrically