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GB596204A
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Improvements in machines for arc welding with a metallic electrode
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GB635052A
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Improvements in photographic recording apparatus
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GB595892A
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Multiple core electrode for arc welding
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US2445863A
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Machine for arc welding with continuous electrodes
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US2496313A
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Apparatus for checking the work of arc welders
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GB585327A
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Improvements in machines for electric-arc-welding
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GB479098A
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Improvements in methods and devices for determining the internal stresses undergone by parts of metal structures
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GB459132A
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Method and apparatus for the manufacture of electrodes for arc welding or similar articles formed by coating a longitudinal core with plastic material
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GB420474A
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Improvements in electrodes for arc welding
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US1995584A
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Electrode for arc welding
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GB419235A
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Method and device for recording the work of arc welders and in general, of workmen utilising an electrode welding circuit
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US2099965A
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Method of recording the work performed by welders
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GB372494A
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Improvements in and relating to mechanism for arc regulation
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US1899829A
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Automatic machine with magnetic plates for regulating arcs
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GB371814A
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Improvements in or relating to arc welding and cutting
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US1946413A
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Electric welding with magnetic stabilization
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GB370363A
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Automatic machine for regulating electric arcs
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US1814061A
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Direct current generator
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GB282392A
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Improvements in and relating to electrode holders for arc welding
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US1759373A
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Arc welding
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