fluid-fuel fired fixed and mobile space heaters for domestic and industrial use, namely, diesel, kerosene, propane and electric fueled forced air, convection and radiant heaters; barrel fans for commercial and industrial applications; and portable space ventilator fans with self-contained ducting for manholes

'air':23 'applic':34 'barrel':28 'commerci':31 'contain':43 'convect':24 'diesel':16 'domest':11 'duct':44 'electr':20 'fan':29,39 'fire':4 'fix':5 'fluid':2 'fluid-fuel':1 'forc':22 'fuel':3,21 'heater':9,27 'industri':13,33 'kerosen':17 'manhol':46 'mobil':7 'name':15 'portabl':36 'propan':18 'radiant':26 'self':42 'self-contain':41 'space':8,37 'use':14 'ventil':38

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