unwrought and partly wrought common metals and their alloys used in the electroerosion technic field; metal cables and non-electric wires made of copper and brass and metallic pipes and tubes

'alloy':9 'brass':27 'cabl':17 'common':5 'copper':25 'electr':21 'electroeros':13 'field':15 'made':23 'metal':6,16,29 'non':20 'non-electr':19 'part':3 'pipe':30 'technic':14 'tube':32 'unwrought':1 'use':10 'wire':22 'wrought':4

anodes; electrodes; apparatus and instruments employing electroerosion; namely, spark erosion machines

'anod':1 'apparatus':3 'electrod':2 'electroeros':7 'employ':6 'eros':10 'instrument':5 'machin':11 'name':8 'spark':9

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