4. Boring or penetrating the earth
  5. Automatic control
  6. Of advance or applied tool weight

Ossi Tienari

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Feed apparatus for feeding capsular cartridges into drilled...

Wells – Above ground apparatus – With means for injecting solid or particulate material into...
Reexamination Certificate

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Feeding device for a rock drilling machine

Tool driving or impacting – With means to adjust position of axis of tool advance
Patent

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Method of and an arrangement for controlling rock drilling

Boring or penetrating the earth – Automatic control – Of advance or applied tool weight
Patent

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Reversing mechanism for the direction of rotation in a drilling

Tool driving or impacting – Advance causing or controlling means – Driven flexible member causes advance
Patent

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Profile ID: LFUS-PAI-P-314874

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