joints (parts of engines) ; filter elements for application in machines or parts of engines
Class 021
Houseware and Glass Products
fibres made of synthetic material such as for heat or sound non-conducting materials for retaining for use in the car, domestic and acoustic industry;packing, stopping and insulating and filter materials
Class 022
Ropes, Cordage and Fiber Products
fibres made of synthetic material for use in fabrics and textile products as far as not included in other classes
fibres made of synthetic material used as filter material namely filters being parts of household and industrial installations