Heat exchangers and parts therefor, namely, tubes and bundles of tubes for use in the petroleum, chemical, gas processing, power and refinery industries and replacement parts therefor

'bundl':9 'chemic':17 'exchang':2 'gas':18 'heat':1 'industri':23 'name':6 'part':4,26 'petroleum':16 'power':20 'process':19 'refineri':22 'replac':25 'therefor':5,27 'tube':7,11 'use':13

Heat exchangers, namely, shell and tube heat exchangers and parts therefor for use in the petroleum, chemical, gas processing, power and refinery industries and replacement parts therefor; enhanced heat transfer tubes being tubes for shell and tube heat exchangers for high performance heat exchangers

'chemic':17 'enhanc':28 'exchang':2,8,39,44 'gas':18 'heat':1,7,29,38,43 'high':41 'industri':23 'name':3 'part':10,26 'perform':42 'petroleum':16 'power':20 'process':19 'refineri':22 'replac':25 'shell':4,35 'therefor':11,27 'transfer':30 'tube':6,31,33,37 'use':13

Heat transfer products being metal tubes for use in the petroleum, chemical, gas processing, power and refinery industries and replacement parts therefor; Enhanced heat transfer tubes being metal tubes for high performance heat exchanger

'chemic':12 'enhanc':23 'exchang':34 'gas':13 'heat':1,24,33 'high':31 'industri':18 'metal':5,28 'part':21 'perform':32 'petroleum':11 'power':15 'process':14 'product':3 'refineri':17 'replac':20 'therefor':22 'transfer':2,25 'tube':6,26,29 'use':8

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