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(it)
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Metodo per la produzione di tubi di acciaio di elevata resistenza
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(https=)
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Method of manufacture of centrifugally cast tubular metal articles
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Improvements in and relating to high frequency electric conductors
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Improvements relating to push bench drawing apparatus for the manufacture of metal tubes
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Improvements relating to push bench drawing apparatus for the manufacture of metal tubes
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Improved process for the manufacture of steel
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Procédé pour la purification du manganèse métallique.
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Improved method of making metal articles of predetermined shape
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Verfahren zur Herstellung von Metallrohren
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