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

Sang-Hoon Joo

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Apparatus for manufacturing compacted irons of reduced...

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Reexamination Certificate

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Apparatus for manufacturing molten irons by hot compacting...

Metallurgical apparatus – With means to comminute or disintegrate solids
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3204533

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