Machines and machine tools, namely, portable rock drills, rock-drilling equipment in the nature of drilling masts and structural and replacement machine parts therefore; pneumatic and fluid cooling and injection equipment in the nature of conveyor tubes and screws, heat exchangers, nozzles, and injectors for use with portable rock drills and rock-drilling equipment and replacement parts and materials therefore

'conveyor':37 'cool':29 'drill':8,11,17,51,55 'equip':12,32,56 'exchang':42 'fluid':28 'heat':41 'inject':31 'injector':45 'machin':1,3,23 'mast':18 'materi':61 'name':5 'natur':15,35 'nozzl':43 'part':24,59 'pneumat':26 'portabl':6,49 'replac':22,58 'rock':7,10,50,54 'rock-dril':9,53 'screw':40 'structur':20 'therefor':25,62 'tool':4 'tube':38 'use':47

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