4. Metallurgical apparatus
  5. Means for treating ores or for extracting metals
  6. By means applying heat to work, e.g., furnace

Harold Edward Haigh

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Closure means

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
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Pipes and tubular conduits – Miscellaneous
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Supported vessel and means for support thereof

Supports – Stand – Receptacle
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