Machines for use in agriculture, namely, self-propelled seed sowers and self-propelled seed sowers combined with earth moving equipment; Self-lubricating mechanical friction parts, especially of composite materials, namely, wear rings, washers, bushings, spherical bearings, bearing pads, sliding blocks and machine transmission gears all for load bearing machines, conveyors, handling trucks and machines, lifting machines, agricultural machinery, construction equipment machines and hydraulic turbines

'agricultur':5,60 'bear':39,40,51 'block':43 'bush':37 'combin':18 'composit':31 'construct':62 'conveyor':53 'earth':20 'equip':22,63 'especi':29 'friction':27 'gear':47 'handl':54 'hydraul':66 'lift':58 'load':50 'lubric':25 'machin':1,45,52,57,59,64 'machineri':61 'materi':32 'mechan':26 'move':21 'name':6,33 'pad':41 'part':28 'propel':9,15 'ring':35 'seed':10,16 'self':8,14,24 'self-lubr':23 'self-propel':7,13 'slide':42 'sower':11,17 'spheric':38 'transmiss':46 'truck':55 'turbin':67 'use':3 'washer':36 'wear':34

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