4. Mining or in situ disintegration of hard material
  5. With separation of materials
  6. Separation below surface of earth or water

Marc Lejeune

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Device and process for overfeeding compressed gas to an...

Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate

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Nodule dredging apparatus and process

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Profile ID: LFUS-PAI-P-1649823

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