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US3549854A
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Electron beam welding method
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GB1122853A
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Improvements relating to method of and apparatus for resistance welding
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GB1101521A
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Improvements in and relating to vacuum chambers, particularly for electron beam welding machines
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US3495067A
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Resistance welding machine
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ES308893A1
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Improvements in and relating to arc welding apparatus
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GB1049057A
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Electron beam welding out of vacuum
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GB833295A
|
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Resistance welding apparatus
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GB755747A
|
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Improvements in combination single-phase line frequency welder and impulse welder
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GB716573A
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Improvements in sliding contact mechanism for conducting heavy electric currents
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GB701849A
|
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Improvements in electric sliding contact devices
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GB679979A
|
|
Improvement in single-phase electric converting system
|
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GB663345A
|
|
Improvements in sliding contact structures for conducting electric currents
|
|
GB667146A
|
|
Improvements in sliding contact mechanism for conducting heavy electric currents
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|
GB677449A
|
|
Improvements in electric welding machines and electrode sturctures therefor
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GB674042A
|
|
Improvements in or relating to electric welding apparatus
|
|
GB674043A
|
|
Improvements in protective system for three-phase/single-phase machines
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|
GB654583A
|
|
Improvements in or relating to the conversion of polyphase current to unidirectionalcurrent impulses
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GB604276A
|
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Improvements in and relating to the art of electric resistance welding forging and heating
|
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GB601379A
|
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Improvements in and relating to electric resistance welding devices
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GB540124A
|
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Improvements in or relating to the electrical resistance welding of tubes
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