4. Boring or penetrating the earth
  5. With tool shaft detail
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Wear protective means for a drilling tool

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Wear protector for a drilling tool

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Wear resistant sleeve for sub assembly

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Wear resistant sub assembly

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Wear sleeve

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Wedge lock stabilizer

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Well bore tools

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Well drilling tool

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Well tool for use with down-hole drilling apparatus

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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