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GB704712A
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Normalizing electrically welded tubing in line of production
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GB713201A
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Electric seam welding apparatus
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US2557046A
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Method of and system for obtaining oriented control image of weld zone in seam welding apparatus
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GB656386A
|
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Process of and apparatus for continuously casting metals
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US2582329A
|
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Apparatus for handling continuous castings
|
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US2571033A
|
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Apparatus for pouring molten metal
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US2522482A
|
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Electric arc welding
|
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US2520598A
|
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Tilting type electric induction furnace
|
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US2532117A
|
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Nickel steel alloys
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US2573295A
|
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Bead trimmer
|
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US2182177A
|
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Tube and other container
|
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US2114302A
|
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Method of making round billets
|
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US2123144A
|
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Apparatus for elevated temperature service
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US2094920A
|
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Rolling mill
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US2014679A
|
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Reaming apparatus
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US1946971A
|
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Heating furnace
|
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GB368154A
|
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Improvements in and relating to austenitic ferrous alloys and articles made thereof
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US1987201A
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Making of seamless tubes
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US2073901A
|
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Austenitic ferrous alloys and articles made thereof
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GB314523A
|
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Improvements in methods of and apparatus for making seamless tubes
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