4. Boring or penetrating the earth
  5. With tool shaft detail
  6. Shaft carried guide or protector

Paul Roberts

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Adjustable gauge downhole drilling assembly

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

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Adjustable gauge downhole drilling assembly

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

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Backplate and a method of making a backplate

Brakes – Elements – Shoes
Reexamination Certificate

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Brake and actuator assembly

Brakes – Wheel – Axially movable brake element or housing therefor
Reexamination Certificate

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Brake assembly

Brakes – Wheel – Axially movable brake element or housing therefor
Reexamination Certificate

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Profile ID: LFUS-PAI-P-379219

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