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GB461490A
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Improvements relating to tube rolling mills
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GB376063A
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Improvements in or relating to props
|
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GB370374A
|
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Improvements in or relating to the rolling of metal tubes
|
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GB170272A
|
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Improvements in the manufacture of pipe connections particularly those intended to form elements of tubular superheaters
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GB191101552A
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Apparatus for Straightening or Trueing Round, Solid or Hollow Bars.
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GB191025410A
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Improved Safety Fastening for Receptacles.
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GB190617013A
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Improvements relating to Tubular Constructional Framework.
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