[Class : 7] Shaft Couplings ("Machines: Axles For Machines: Transmission Shafts, Other
Than For Land Vehicles: Self Oiling Bearings: Ball Bearings: Lubricators [Parts
Of Machinesi: Bearing Brackets For Machines: Bearings Fparts Of Machines]:
Clutches, Other Than For Land Vehicles: Chucks [Parts Of Machinesi: Cranks
[Parts Of Machines]: Driving Motors, Other Than For Land...