4. Boring or penetrating the earth
  5. Boring with explosion in inaccessible hole
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Slimhole drill system

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Projectile forms bore
Patent

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Spiral gun apparatus

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Patent

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Subterranean well casing perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Patent

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System and apparatus for orienting a well casing perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

System and method for dynamically adjusting the center of...

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating
Reexamination Certificate

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System for indicating the firing of a perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means
Reexamination Certificate

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System for indicating the firing of a perforating gun

Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means
Reexamination Certificate

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System for producing high density, extra large well perforations

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Patent

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