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US4076973A
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Resistance type flash butt welder
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US4061078A
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Device for removing external circular fins from pipe joints
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US4012619A
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Machine for the resistance butt welding of pipes by fusion
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CH544609A
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Continuous spark butt welding appts - with regulating mechanisms which allow factors arising during welding to be compensate
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GB1358495A
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Machine for continuous flash butt-welding of parts
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FR2165046A5
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Resistance butt welding machine - with simplified drive mechanisms
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GB1358887A
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Flash-off butt-welding machine
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US3681563A
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Continuous flash-off resistance butt-welding
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CH546621A
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Continuous spark resistance butt welding machine - with command actua mechanisms arranged as a single unit
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GB1353104A
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Method of flash-butt welding of articles
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FR2144967A5
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Resistance butt welding process - for tubes, pipelines, etc held internally
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US3684856A
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Resistance butt welding machine
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GB1352580A
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Flash-butt welding machine
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CH553616A
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Resistance butt welding process - for tubes, pipelines, etc held internally
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FR2133123A5
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Butt-welding of tubes etc
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CH543336A
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Butt-welding of tubes etc
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US3612811A
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Method of the electric butt welding of workpieces
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