| http://www.w3.org/ns/prov#value | - In producing a series of filler welds in work with a welding filler wire using a robot having an arm for manipulating the wire, said robot including sensing means responsive to electrical conduction through the wire and the work for locating said wire in the correct position for welding, the end of said wire being oxidized during each weld of the series which would undesirably preclude said electr
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