4. Boring or penetrating the earth
  5. With tool shaft detail
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Rock drill

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill bit

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill bit loading device

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill product and method

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drill with conveying groove

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drilling apparatus with noise reducing drill rod cover

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drilling tool

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Rock drilling tool with improved conveying

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roller Belleville spring damper

Boring or penetrating the earth – With tool shaft detail – Axially telescoping shaft section
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roller cone core bit with spiral stabilizers

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roller 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

Roller subs

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

Roof bit coupling

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roof drill and drill rod system

Boring or penetrating the earth – With tool shaft detail – Axially telescoping shaft section
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roof drill bit

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roof drill system

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roof drilling system

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Roof drilling system

Boring or penetrating the earth – With tool shaft detail
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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