Construction equipment, namely, machines used to place, level and finish unhardened concrete

'concret':12 'construct':1 'equip':2 'finish':10 'level':8 'machin':4 'name':3 'place':7 'unharden':11 'use':5

Computer program with a numerical display that provides an early warning to the screed machine operator when errors occur in the process of flattening and leveling unhardened concrete floors

'comput':1 'concret':28 'display':6 'earli':10 'error':18 'flatten':24 'floor':29 'level':26 'machin':15 'numer':5 'occur':19 'oper':16 'process':22 'program':2 'provid':8 'screed':14 'unharden':27 'warn':11

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