wear-resisting pieces consisting of cemented hard metallic compositions; namely, inserts to be used in dies and tools for working, cutting, or shaping metal and other materials, in lathe-centers, in bearing-surface and wearing-surface parts, in pump-valves and parts, thereof, and for cutting tools, lathe-centers, bearing-surface and wearing-surface parts pump-valves which embody such wear-resisting pieces

'bear':35,57 'bearing-surfac':34,56 'cement':7 'center':32,55 'composit':10 'consist':5 'cut':22,51 'die':17 'embodi':68 'hard':8 'insert':12 'lath':31,54 'lathe-cent':30,53 'materi':28 'metal':9,25 'name':11 'part':41,47,63 'piec':4,73 'pump':44,65 'pump-valv':43,64 'resist':3,72 'shape':24 'surfac':36,40,58,62 'thereof':48 'tool':19,52 'use':15 'valv':45,66 'wear':2,39,61,71 'wear-resist':1,70 'wearing-surfac':38,60 'work':21

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