ES253202A1 - Improvements in the construction of tubular elements soldiers to the authentic (Machine-translation by Google Translate, not legally binding)
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Improvements in the construction of tubular elements soldiers to the authentic (Machine-translation by Google Translate, not legally binding)
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Improvements in the construction of welded tubular elements for steam boilers or similar that are composed of straight tubes joined to common collector pipes, characterized in that the free ends of the tubes are provided with plugs for cleaning and said tubes are blended with so cross-shaped with the common inlet and outlet pipes outside the center and cut to such a degree along the lines of interpenetration, that a cross section of sufficient pitch originates. (Machine-translation by Google Translate, not legally binding)
ES0253202A1949-07-081959-11-06Improvements in the construction of tubular elements soldiers to the authentic (Machine-translation by Google Translate, not legally binding)
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