INTERNAL COMBUSTION ENGINES INDIVIDUALLY AND ALSO IN COMBINATION WITH A COMPRESSOR OR PUMP, AND PARTS THEREOF; GAS POWERED ENGINES, AND PARTS THEREOF; [ CRANE EQUIPPED TRUCKS FOR FIRE BRIGADES; MOTORIZED FIRE FIGHTING VEHICLES; VEHICLES HAVING MOUNTED THEREON LIFE SAVING EQUIPMENT-NAMELY, ROTATABLE LADDERS AND ELEVATORS; FIRE FIGHTING TOOLS-NAMELY, AXES, HATCHETS, SAWS, AND PARTS THEREOF; ] TRACTORS [ AND MOTOR LOCOMOTIVES, ] AND PARTS THEREOF, AND NONVARIABLE AND VARIABLE GEAR TRANSMISSIONS FOR [ FIRE FIGHTING TRUCKS, ] TRACTORS, [ STREET MOTOR VEHICLES, RAIL VEHICLES, ] AND PARTS THEREOF