4. Bearings
  5. Rotary bearing
  6. Plain bearing

Volker Kruger

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Apparatus and method for drilling boreholes

Measuring and testing – Borehole or drilling – Formation logging
Patent

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Apparatus for optional straight or directional drilling undergro

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft
Patent

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Apparatus for optional straight or directional drilling undergro

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Normally curved guide or shaft
Patent

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Apparatus for optional straight or directional drilling undergro

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Device for remote transmission of information

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Patent

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Profile ID: LFUS-PAI-P-281860

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