FI-SubClass-Choice

B64B	LIGHTER-THAN-AIR AIRCRAFT (ground installations for aircraft in general B64F)

B64C	AEROPLANES; HELICOPTERS	(Note)/(Index)

B64D	EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT	(Note)/(Index)

B64F	GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR	(Note)/(Index)

B64G	COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR	(Note)/(Index)

B64U	UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR[2023.01]	(Note)/(Index)