ENGINES OR PUMPS

F01      MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES

F02      COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

F03      MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR

F04      POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS

ENGINEERING IN GENERAL

F15      FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL

F16      ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F17      STORING OR DISTRIBUTING GASES OR LIQUIDS

LIGHTING; HEATING

F21      LIGHTING

F22      STEAM GENERATION

F23      COMBUSTION APPARATUS; COMBUSTION PROCESSES

F24      HEATING; RANGES; VENTILATING

F25      REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES

F26      DRYING

F27      FURNACES; KILNS, OVENS OR RETORTS [4]

F28      HEAT EXCHANGE IN GENERAL

WEAPONS; BLASTING

F41      WEAPONS

F42      AMMUNITION; BLASTING

F99      SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]