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US6378196B1
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Method and apparatus for stiffener location and positioning
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Air cooled welding gun
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Welding gun trigger control circuit
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Method and apparatus for welding together beam components
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Adjustable welding head arrangement
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Cable cart arrangement
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Motor generator type welding apparatus
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Apparatus for welding together beam components
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Flux recovery device
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Tandem drive welding wire feed arrangement for semi-automatic welding equipment
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Apparatus for welding stiffeners to fabricated i-beams
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