Electric arc cutting apparatus; Electric arc welding apparatus; Electric welding machines; Electric welding machines for metalworking; Electrodes for welding machines; Filters and purifiers for machines, namely, filters and purifiers for removing contaminants from gases used in the semiconductor industry; Laser welding machines; Oxy-acetylene welding and cutting machines; Plasma cutting machines; Soldering apparatus, electric; Welding apparatus, gas-operated; Welding torches

'acetylen':45 'apparatus':4,8,54,57 'arc':2,6 'contamin':32 'cut':3,48,51 'electr':1,5,9,12,55 'electrod':17 'filter':21,27 'gas':59 'gas-oper':58 'gase':34 'industri':39 'laser':40 'machin':11,14,20,25,42,49,52 'metalwork':16 'name':26 'oper':60 'oxi':44 'oxy-acetylen':43 'plasma':50 'purifi':23,29 'remov':31 'semiconductor':38 'solder':53 'torch':62 'use':35 'weld':7,10,13,19,41,46,56,61

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