mechanical devices for applying tubular bags or liners to the internal surfaces of pipes or passageways, such devices consisting of an interconnected arrangement of pressure chambers, valves, cylinders, hoses, couplings, compressors, pumps, gauges and fittings

'appli':4 'arrang':23 'bag':6 'chamber':26 'compressor':31 'consist':19 'coupl':30 'cylind':28 'devic':2,18 'fit':35 'gaug':33 'hose':29 'interconnect':22 'intern':11 'liner':8 'mechan':1 'passageway':16 'pipe':14 'pressur':25 'pump':32 'surfac':12 'tubular':5 'valv':27

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