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US1077013A
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Process and apparatus for cross-rolling and expanding tubes.
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US1077014A
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Process and apparatus for piercing and rolling tubes.
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US1055368A
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Continuous tube-rolling process and apparatus therefor.
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US950708A
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Process of and apparatus for rolling tubes, solid round bars, and similar bodies.
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GB190413951A
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An Improved Method of Rolling Tubes and Apparatus therefor.
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CA86947A
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Feed mechanism for tube rolling machines
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GB190106639A
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A Process of and Apparatus for Making or Rolling Tubes.
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GB190106640A
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Improvements relating to the Drawing of Tubes.
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GB190100092A
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Improvements relating to the Rolling of Metal Tubes
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CA60603A
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Metal tubes making apparatus
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CA60290A
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Art of and apparatus for expanding metallic tubes
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CA60302A
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Metal tube making process
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GB189730451A
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A Process of and Apparatus for Manufacturing or Treating Metal Tubes.
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GB189730450A
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A Process of and Apparatus for Expanding Metal Tubes.
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GB189730449A
|
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A Process of and Apparatus for Manufacturing Metal Tubes from Solid Billets.
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CA54846A
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Machine for piercing metallic ingots
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GB189523702A
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Improvements in Mechanism for Piercing Solid Metallic Ingots or Blanks.
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