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Improvements in welding apparatus
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Improvements in and relating to Welding Generators
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Improvements in welding apparatus
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US3404329A
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Magnetic amplifier controlled power supply regulators
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Improvements in or relating to Welding Guns
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Improvements in or relating to electrical control apparatus
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GB1112511A
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Improvements in or relating to electric arc welding apparatus
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GB1136595A
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Improvements in or relating to electric arc welding
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GB1133093A
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Improvements in or relating to electric arc welding
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GB1109901A
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Improvements in electric arc welding apparatus
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GB1094703A
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Improvements in or relating to welding
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GB975959A
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Improvements in or relating to electric arc welding apparatus
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GB994973A
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Improvements in or relating to direct current circuits for electric arc welding
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Improvements in welding head manipulators
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Improvements in direct current generators
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Improvements in electric arc welding apparatus
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Improvements in electric arc welding equipment
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US2887972A
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Apparatus for welding pipes
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GB841862A
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Improvements in or relating to electric welding equipment
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GB836983A
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Improvements in electric arc welding equipment
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