7 AGRICULTURAL IMPLEMENTS AND MACHINES-NAMELY, AGRICULTURAL TRACTORS, COMBINE HARVESTERS, FORAGE HARVESTERS, POTATO HARVESTERS, SUGAR BEET HARVESTERS, DRILL MACHINES, SILO LOADERS, MOTOR CULTIVATORS, MOTOR SCYTHES; COMPRESSED AIR MACHINES; ELECTRICAL MACHINES-NAMELY, ELECTRIC MOTORS NOT FOR LAND VEHICLES, ELECTRIC GENERATORS, ALTERNATORS, EDDY CURRENT RETARDERS, ELECTROMAGNETIC BRAKES AND CLUTCHES NOT FOR LAND VEHICLES, ELECTRIC STARTERS NOT FOR LAND VEHICLES; MACHINES IN THE MATURE OF DRIVING MACHINES-NAMELY, SCREW MACHINES, LIFTING MACHINES, CRANES, TRAVELLING CRANES, ELEVATORS, LIFTS AND DESCENDING MACHINES, MOTORS, MACHINE COUPLINGS AND BELTING, TRANSMISSIONS, COUPLINGS, TORQUE CONVERTERS, CLUTCHES, RETARDERS AND BRAKES AND STRUCTURAL PARTS THEREOF; FRICTION PLATE FACINGS AND ANTIFRICTION PLATE FACINGS; SHOES, PLATES, JAWS, SECTORS, DISCS, BANDS, COVERS, ROLLERS; INCUBATORS FOR REARING POULTRY; ENGINES, TRANSMISSION MECHANISMS, CLUTCHES, COUPLINGS AND TORQUE CONVERTERS FOR AIR AND WATER VEHICLES AND STATIONARY INSTALLATIONS AND STRUCTURAL PARTS THEREOF; ROAD SURFACE SCRAPERS; SELF-PROPELLED DUMP CARTS; BULLDOZERS