4. Hydraulic and earth engineering
  5. Earth treatment or control
  6. Chemical

Jacques Charlier

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Cupola-type ophthalmological apparatus the visual field and the

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent

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Method of automatic control of means for adjusting an apparatus

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent

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Process for guiding the excavation tool used for the constructio

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent

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System for guiding the excavation tool used for constructing a w

Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent

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Profile ID: LFUS-PAI-P-717843

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