4. Static structures (e.g., buildings)
  5. With piercing or expanding earth anchor

James S. Barbera

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Auger drill directional control system

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Reexamination Certificate

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Ground engaging stake

Static structures (e.g. – buildings) – With piercing or expanding earth anchor
Patent

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Lubricated pilot tubes for use with auger boring machine...

Boring or penetrating the earth – Processes – Boring horizontal bores
Reexamination Certificate

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Pilot tube system and attachment mechanism for auger boring...

Boring or penetrating the earth – Processes – Boring horizontal bores
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1631443

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