1
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; Unprocessed artificial resins, unprocessed plastics; Tempering and soldering preparations; Adhesives used in industry; Ceramic compositions for sintering (granules and powders); Compositions for the manufacture of technical ceramics
7
Pumps; Pressure valves [parts of machines]; Valves (parts of machines); Gaskets (engine parts); Couplings (connectors) other than for land vehicles; Shaft couplings (machines); Machines and machine tools; Motors and engines (except for land vehicles); Valves for pumps; Machine coupling and transmission components (except for land vehicles); Crankcases for machines, motors and engines; Housings [parts of machines]; Machine wheels; Crank shafts; Piston rings; Pistons (parts of machines, engines or motors); Dashpot plungers (parts of machines); Pistons for cylinders; Cylinders for machines; Compressors (superchargers); Compressors (machines); Transmission shafts (other than for land vehicles); Machine wheelwork; Gears, other than for land vehicles; Aerators; Anti-friction pads for machines; Ball-bearings; Bearings (machine parts); Roller bearings; Self-oiling bearings; Bearings for transmission shafts; Journal boxes [parts of machines]; Valves for pumps; Pistons; Pistons for machines; Pistons (parts of machines, engines or motors); Ceramic masses being parts of motors and engines
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; Plastics in extruded form for use in manufacture; Packing, stopping and insulating materials; Flexible pipes, not of metal; Piston seals of plastics; Piston seals, not of metal; Synthetic and composite materials