MAKING PERIPHERAL WELDS ON VERTICALLY EXTENDING STRUCTURAL MEMBERS, SUCH AS OIL WELL CONDUCTOR PIPE, FOR OTHERS

'conductor':13 'extend':6 'make':1 'member':8 'oil':11 'other':16 'peripher':2 'pipe':14 'structur':7 'vertic':5 'weld':3 'well':12

WELDING MACHINES ADAPTED TO MAKE PERIPHERAL WELDS ON VERTICALLY EXTENDING STRUCTURAL MEMBERS, SUCH AS OIL WELL CONDUCTOR PIPE, AND INCLUDING A WELDING RING ADAPTED TO BE SECURED TO SUCH MEMBERS ANDONE OR MORE WELDING HEADS ADAPTED TO TRAVERSE SUCH MEMBERS ON SAID RING

'adapt':3,24,36 'andon':31 'conductor':17 'extend':10 'head':35 'includ':20 'machin':2 'make':5 'member':12,30,40 'oil':15 'peripher':6 'pipe':18 'ring':23,43 'said':42 'secur':27 'structur':11 'travers':38 'vertic':9 'weld':1,7,22,34 'well':16

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