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CH713352A1
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Grate block for a grate of an incinerator.
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ES277320A1
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An installation for the manufacture of tubes with solded cooling of helicoidal course (Machine-translation by Google Translate, not legally binding)
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GB922054A
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Bending mechanism for production of tubing or the like
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ES270157A1
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An apparatus for the manufacture of tubes (Machine-translation by Google Translate, not legally binding)
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ES267197A1
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A device for the manufacture of tubes (Machine-translation by Google Translate, not legally binding)
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ES267196A3
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An apparatus for the manufacture of cylindrical and conical tubes (Machine-translation by Google Translate, not legally binding)
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ES267198A1
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A procedure for the manufacture of tubes (Machine-translation by Google Translate, not legally binding)
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CA748251A
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Process for the removal of hydrogen sulfide from natural gas
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CA706138A
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Method and device for manufacturing helically formed tubes
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