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Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

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Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

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Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling head

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

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Drilling head with bayonet coupling

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

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Drilling machine for drilling large drilling holes in rock, part

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical... – Rotary drive for a relatively advancing tool
Patent

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