chemical additives for gas, namely, a flame enhancement additive for propane, propylene and natural gas

'addit':2,9 'chemic':1 'enhanc':8 'flame':7 'gas':4,15 'name':5 'natur':14 'propan':11 'propylen':12

liquified petroleum gas for cutting, heating, welding, brazing and soldering metal; non-chemical additives for gas, namely, a flame enhancement additive for propane, propylene and natural gas

'addit':15,22 'braze':8 'chemic':14 'cut':5 'enhanc':21 'flame':20 'gas':3,17,28 'heat':6 'liquifi':1 'metal':11 'name':18 'natur':27 'non':13 'non-chem':12 'petroleum':2 'propan':24 'propylen':25 'solder':10 'weld':7

CHEMTANE 2

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