4. Boring or penetrating the earth
  5. Bit or bit element
  6. Bit with leading portion forming smaller diameter initial bore

Tracto-Technik GmbH

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Apparatus and method for joining a pipe conduit to a...

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate

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Boring head method and boring head for a ground boring device

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore
Reexamination Certificate

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Control system for a percussion drive

Tool driving or impacting – Impacting devices – Selective axial direction of impact
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Cutting device for pipelines

Cutlery – Pipe and rod cutters – Adapted to cut pipe or rod longitudinally
Reexamination Certificate

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Cutting system, device, and method for splitting pipes

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2198503

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